References analysis of the Wikipedia article "List of Billboard number-one R&B/hip-hop albums of 2015" in the English version

billboard.com

"2015 Top R&B/Hip-Hop Albums".

"2015 Top R&B Albums".

"2015 Top Rap Albums".

Billboard issue dated January 3, 2015:

"R&B/Hip-Hop Albums". Billboard. 2015-01-03.
Billboard issue dated January 10, 2015:
- "R&B/Hip-Hop Albums". Billboard. 2015-01-10.
- Billboard issue dated January 17, 2015:
  - "R&B/Hip-Hop Albums". Billboard. 2015-01-17.
  - Billboard issue dated January 24, 2015:
    - "R&B/Hip-Hop Albums". Billboard. 2015-01-24.
    - Billboard issue dated January 31, 2015:
      - "R&B/Hip-Hop Albums". Billboard. 2015-01-31.
      - Billboard issue dated February 7, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-02-07.
        Billboard issue dated February 14, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-02-14.
        Billboard issue dated February 21, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-02-21.
        Billboard issue dated February 28, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-02-28.
        Billboard issue dated March 7, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-03-07.
        Billboard issue dated March 14, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-03-14.
        Billboard issue dated March 21, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-03-21.
        Billboard issue dated March 28, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-03-28.
        Billboard issue dated April 4, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-04-04.
        Billboard issue dated April 11, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-04-11.
        Billboard issue dated April 18, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-04-18.
        Billboard issue dated April 25, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-04-25.
        Billboard issue dated May 2, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-05-02.
        Billboard issue dated May 9, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-05-09.
        Billboard issue dated May 16, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-05-16.
        Billboard issue dated May 23, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-05-23.
        Billboard issue dated May 30, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-05-30.
        Billboard issue dated June 6, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-06-06.
        Billboard issue dated June 13, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-06-13.
        Billboard issue dated June 20, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-06-20.
        Billboard issue dated June 27, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-06-27.
        Billboard issue dated July 4, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-07-04.
        Billboard issue dated July 11, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-07-11.
        Billboard issue dated July 18, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-07-18.
        Billboard issue dated July 25, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-07-25.
        Billboard issue dated August 1, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-08-01.
        Billboard issue dated August 8, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-08-08.
        Billboard issue dated August 15, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-08-15.
        Billboard issue dated August 22, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-08-22.
        Billboard issue dated August 29, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-08-29.
        Billboard issue dated September 5, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-09-05.
        Billboard issue dated September 12, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-09-12.
        Billboard issue dated September 19, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-09-19.
        Billboard issue dated September 26, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-09-26.
        Billboard issue dated October 3, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-10-03.
        Billboard issue dated October 10, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-10-10.
        Billboard issue dated October 17, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-10-17.
        Billboard issue dated October 24, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-10-24.
        Billboard issue dated October 31, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-10-31.
        Billboard issue dated November 7, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-11-07.
        Billboard issue dated November 14, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-11-14.
        Billboard issue dated November 21, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-11-21.
        Billboard issue dated November 28, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-11-28.
        Billboard issue dated December 5, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-12-05.
        Billboard issue dated December 12, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-12-12.
        Billboard issue dated December 19, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-12-19.
        Billboard issue dated December 26, 2015:
        "R&B/Hip-Hop Albums". Billboard. 2015-12-26.

List of Billboard number-one R&B/hip-hop albums of 2015 (English Wikipedia)

billboard.com