Winter, Jonah (1997-09-17). „Dying for God: Martyrdom in the Shii and Babi Religions”. Master of Arts Thesis, University of Toronto. http://bahai-library.com/theses/dying/.
Lundberg, Zaid (1996-05). „The Concept of Progressive Revelation”. Baha’i Apocalypticism: The Concept of Progressive Revelation. Department of History of Religion at the Faculty of Theology, Lund University. http://bahai-library.com/?file=lundberg_bahai_apocalypticism. Retrieved on 2007-05-01.
Netherlands Institute of Human Rights: Iran, Islamic Republic of. Netherlands Institute of Human Rights, 2006-03-08. [dostęp 2006-05-31]. [zarchiwizowane z tego adresu (2006-05-02)].
Dr. Rabbani Ahang. Achievements of the Seven Year Plan. „Bahá'í News”, s. 2–7, 1987. Department of Statistics at the Bahá'í World Centre in Haifa, Israel: Bahá'í International Community.Rabbani_Achievements of the Seven Year Plan.pdf.
Netherlands Institute of Human Rights: Iran, Islamic Republic of. Netherlands Institute of Human Rights, 2006-03-08. [dostęp 2006-05-31]. [zarchiwizowane z tego adresu (2006-05-02)].