MANNING THOMAS, J. Shoghi Effendi’s Plans for Progress: Practical Lessons. The Journal of Bahá’í Studies, Ottawa, Ontario, Canada, v. 7, n. 4, p. 69–86, 1997. DOI: 10.31581/jbs-7.4.272(1997). Disponível em: https://journal.bahaistudies.ca/online/article/view/272. Acesso em: 26 sep. 2021.