, I. K. (1998). Pilar - Pilar Rohani. Lentera.
Chicago Style Citation, Irwan Kurniawan. Pilar - Pilar Rohani. Lentera, 1998.
MLA Citation, Irwan Kurniawan. Pilar - Pilar Rohani. Lentera, 1998.
Warning: These citations may not always be 100% accurate.