Diessner, Rhett. “Selflessness: Congruences Between the Cognitive–Developmental Research Program and the Bahá’í Writings”. The Journal of Bahá’í Studies 3, no. 2 (June 1, 1990): 1–13. Accessed June 30, 2026. https://www.journal.bahaistudies.ca/online/article/view/45.