Progressive revelation (Baháʼí) (English Wikipedia)

Lundberg, Zaid (May 1996). Baha'i Apocalypticism: The Concept of Progressive Revelation. Department of History of Religion at the Faculty of Theology, Lund University. Retrieved 2006-11-25.
Letter written on behalf of the Universal House of Justice to an individual believer, March 13, 1986. Published in Effendi, Shoghi (1983). Hornby, Helen (ed.). Lights of Guidance: A Baháʼí Reference File. Baháʼí Publishing Trust, New Delhi, India. p. 500. ISBN 81-85091-46-3.
Karl Weaver (2017). Explanation of a Zoroastrian Prophecy: Length of the "Baháʼí Cycle".
Compilations (1983). Hornby, Helen (ed.). Lights of Guidance: A Baháʼí Reference File. Baháʼí Publishing Trust, New Delhi, India. p. 414. ISBN 81-85091-46-3.

bahai.org (Global: 5,220^th place; English: 4,234^th place)

ʻAbdu'l-Bahá, The Promulgation of Universal Peace, p. 378.
Gleanings, pg. 81.
The Kitáb-i-Íqán, pg. 199.
The Kitáb-i-Aqdas, gr. 37.
ʻAbdu'l-Bahá (1990) [1908]. Some Answered Questions (Softcover ed.). Wilmette, Illinois, USA: Baháʼí Publishing Trust. p. 160. ISBN 0-87743-162-0.
Effendi, Shoghi (1938). The World Order of Baháʼu'lláh. Wilmette, Illinois, USA: Baháʼí Publishing Trust. p. 163. ISBN 0-87743-231-7. {{cite book}}: ISBN / Date incompatibility (help)
Effendi, Shoghi (1938). The World Order of Baháʼu'lláh. Wilmette, Illinois, USA: Baháʼí Publishing Trust. p. 102. ISBN 0-87743-231-7. {{cite book}}: ISBN / Date incompatibility (help)
Effendi, Shoghi (1944). God Passes By. Wilmette, Illinois, USA: Baháʼí Publishing Trust. p. 100. ISBN 0-87743-020-9. {{cite book}}: ISBN / Date incompatibility (help)

Universal House of Justice. Messages 1963 to 1986. Wilmette, Illinois: Baháʼí Publishing Trust. p. 738.

Smith, Peter (2000). "Progressive revelation". A concise encyclopedia of the Baháʼí Faith. Oxford: Oneworld Publications. pp. 276–277. ISBN 1-85168-184-1.
McMullen, Michael D. (2000). The Baha'i: The Religious Construction of a Global Identity. Atlanta, Georgia: Rutgers University Press. p. 7. ISBN 0-8135-2836-4.
Abdul-Baha (2006-01-01). Paris Talks: Addresses Given by ʻAbdu'l-Bahá in 1911. Baha'i Publishing Trust. ISBN 9781931847322.
Smith, Peter (2008). An Introduction to the Baha'i Faith. Cambridge: Cambridge University Press. pp. 108–109. ISBN 978-0-521-86251-6.
Fisher, Mary Pat (1996). Living Religions: An Encyclopaedia of the World's Faiths. I B Tauris & Co Lt. pp. 417–418. ISBN 1-86064-148-2.
Smith, Peter (2000). "Iqan, Kitab-i". A concise encyclopedia of the Baháʼí Faith. Oxford: Oneworld Publications. pp. 202–204. ISBN 1-85168-184-1.