A. Harris, Khalif Muammar. “Sekularisasi Etika Dan Krisis Moral Masa Kini: Secularisation of Ethics and Contemporary Moral Crisis”. Afkar: Jurnal Akidah dan Pemikiran Islam 23, no. 2 (December 30, 2021): 121–170. Accessed December 22, 2024. http://adum.um.edu.my/index.php/afkar/article/view/34353.