Coba jelasin Bacaan tambahan dari Kōfuku-no-Kagaku dong

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Yamashita, Akiko (1998), 'The "Eschatology" of Japanese new and new new religions: from Tenrikyo to Kofuku-no-Kagaku' in Japanese Religions, Vol. 23, January 1998, NCC, Kyoto, Japan, pp. 125–42

"The Transformation of a Recent Japanese New Religion: Okawa Ryuho and Kofuku no Kagaku" in Japanese Journal of Religious Studies 22, pp. 343-380