APA (7th ed.) Citation

Salim Bin Usman. (1989). Ma'Rifatullah. Penerbit Klang Book Centre.

Chicago Style (17th ed.) Citation

Salim Bin Usman. Ma'Rifatullah. Selangor: Penerbit Klang Book Centre, 1989.

MLA (9th ed.) Citation

Salim Bin Usman. Ma'Rifatullah. Penerbit Klang Book Centre, 1989.

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