APA (7th ed.) Citation

Bakri,Oemar. Memantapkan rukun iman & Islam. Mutiara.

Chicago Style (17th ed.) Citation

Bakri,Oemar. Memantapkan Rukun Iman & Islam. Mutiara.

MLA (8th ed.) Citation

Bakri,Oemar. Memantapkan Rukun Iman & Islam. Mutiara.

Warning: These citations may not always be 100% accurate.