Bulan, S. E. (2023) “Mengintegrasikan Iman dan Pembelajaran dalam Pendidikan Agama Kristen (Integrating Faith and Learning in Christian Religious Education): Pendekatan Teologis oleh James R. Estep (A Theological Approach by James R. Estep)”, RERUM: Journal of Biblical Practice, 4(2), pp. 156–175. doi: 10.55076/rerum.v4i2.342.