If You Don't Know Me by Now (English Wikipedia)

"Billboard Hot 100". Billboard. July 15, 1989. Retrieved July 30, 2023.
"Adult Contemporary". Billboard. June 24, 1989. Retrieved July 30, 2023.
"Hot R&B/Hip-Hop Songs". Billboard. July 29, 1989. Retrieved July 30, 2023.
"Adult Contemporary Songs – Year-End 1989". Billboard. Retrieved March 11, 2021.
Trust, Gary (April 15, 2009). "Chart Beat: Rascal Flatts, Seal, Eminem". Billboard. Retrieved January 14, 2024.
Dauphin, Chuck (December 13, 2013). "Martina McBride Sets 'Everlasting' Album". Billboard. Retrieved January 15, 2024.

billboardtop100of.com

"Billboard Top 100 – 1989". Billboardtop100of.com. Retrieved November 6, 2020.

books.google.com

Breithaupt, Don; Breithaupt, Jeff (October 15, 1996). "The Sound of Philadelphia: Philly Soul". Precious and Few - Pop Music in the Early '70s. St. Martin's Griffin. p. 52. ISBN 031214704X.

bpi.co.uk

"British single certifications – Simply Red – If You Don't Know Me by Now". British Phonographic Industry. Retrieved November 6, 2020.

cashboxmagazine.com

"Cash Box Top 100 12/02/72". Cashboxmagazine.com. Retrieved March 30, 2021.
"Cash Box Top 100 Singles: July 15, 1989". Cash Box. Retrieved January 3, 2021.

charts.nz

"Simply Red – If You Don't Know Me by Now". Top 40 Singles.

cleveland.com

Smith, Troy L. (May 13, 2021). "Every No. 1 song of the 1980s ranked from worst to best". Cleveland.com. Retrieved January 30, 2023.

cnn.com

edition.cnn.com

"Songs of the Century". CNN. March 7, 2001. Retrieved December 6, 2022.

discogs.com

"Zap Pow – Wild Honey / If You Don't Know Me By Now". Discogs. Retrieved July 12, 2022.

dutchcharts.nl

"Simply Red – If You Don't Know Me by Now" (in Dutch). Single Top 100.
"Jaaroverzichten – Single 1989" (in Dutch). MegaCharts. Retrieved May 21, 2020.

entertainmentbusiness.nl

"Uniek hitrecord voor Ben Saunders". Entertainment Business (in Dutch). December 20, 2010.

grammy.com

"Winners - 32nd Annual GRAMMY Awards (1989)". Recording Academy. November 28, 2017. Retrieved March 24, 2018.

ifpi.dk

"Danish single certifications – Simply Red – If You Don't Know Me by Now". IFPI Danmark. Retrieved January 24, 2024.

ifpi.se

"Guld- och Platinacertifikat − År 1987−1998" (PDF) (in Swedish). IFPI Sweden. Archived from the original (PDF) on 2011-05-17. Retrieved March 5, 2019.

inbetweendrafts.com

Gibbs, Ryan (November 15, 2022). "An introduction to Sophisti-pop". In Between Drafts. Retrieved October 12, 2024.

irishcharts.ie

"The Irish Charts – Search Results – If You Don't Know Me by Now". Irish Singles Chart. Retrieved May 7, 2020.
"The Irish Charts – Search Results – If You Don't Know Me by Now". Irish Singles Chart.

lescharts.com

"Simply Red – If You Don't Know Me by Now" (in French). Les classement single.

norwegiancharts.com

"Simply Red – If You Don't Know Me by Now". VG-lista.

officialcharts.com

"Official Charts Company". Officialcharts.com. January 13, 1973. Retrieved May 7, 2020.
"Simply Red: Artist Chart History". Official Charts Company.

offiziellecharts.de

"Offiziellecharts.de – Simply Red – If You Don't Know Me by Now" (in German). GfK Entertainment charts.
"Top 100 Single–Jahrescharts 1989" (in German). GfK Entertainment. Retrieved May 21, 2020.

oricon.co.jp

"二人の絆 | シンプリー・レッド" [The Bond Between Two People | Simply Red] (in Japanese). Oricon. Retrieved January 30, 2024.

people.com

"Grammy Awards 2010 Winners & Nominees". People. January 31, 2010. Retrieved January 14, 2024.

riaa.com

"American single certifications – Simply Red – If You Don't Know Me by Now". Recording Industry Association of America. Retrieved July 22, 2018.

stereogum.com

Breihan, Tom (July 30, 2021). "The Number Ones: Simply Red's "If You Don't Know Me By Now". Stereogum. Retrieved November 26, 2023.

swedishcharts.com

"Simply Red – If You Don't Know Me by Now". Singles Top 100.

swisscharts.com

"Simply Red – If You Don't Know Me by Now". Swiss Singles Chart.

theguardian.com

"Which David Brent song hits do you want to hear?". The Guardian. October 2, 2013. Retrieved January 15, 2024.

top40.nl

"Nederlandse Top 40 – week 23, 1989" (in Dutch). Dutch Top 40.
"Top 100–Jaaroverzicht van 1989". Dutch Top 40. Retrieved May 21, 2020.

tropicalglen.com

"Cash Box YE Pop Singles - 1973". Tropicalglen.com. Retrieved March 30, 2021.

ultratop.be

"Simply Red – If You Don't Know Me by Now" (in Dutch). Ultratop 50.
"Jaaroverzichten 1989" (in Dutch). Ultratop. Retrieved May 21, 2020.

web.archive.org

"Guld- och Platinacertifikat − År 1987−1998" (PDF) (in Swedish). IFPI Sweden. Archived from the original (PDF) on 2011-05-17. Retrieved March 5, 2019.

worldcat.org

search.worldcat.org

"Eurochart Hot 100 1989" (PDF). Music & Media. Vol. 6, no. 51. December 23, 1989. p. 6. OCLC 29800226. Retrieved January 17, 2020 – via World Radio History.

worldradiohistory.com

Smith, Jerry (April 8, 1989). "Singles" (PDF). Music Week. p. 21. Retrieved March 13, 2023.
"Eurochart Hot 100 Singles" (PDF). Music & Media. Vol. 6, no. 17. April 29, 1989. p. 30. Retrieved November 6, 2020.
"Eurochart Hot 100 1989" (PDF). Music & Media. Vol. 6, no. 51. December 23, 1989. p. 6. OCLC 29800226. Retrieved January 17, 2020 – via World Radio History.