APA (7th ed.) Citation

HAKAM, A. Biografi Umar Bin Abdul Aziz. Gema Insani Pre.

Chicago Style (17th ed.) Citation

HAKAM, Abdullah. Biografi Umar Bin Abdul Aziz. Gema Insani Pre.

MLA (8th ed.) Citation

HAKAM, Abdullah. Biografi Umar Bin Abdul Aziz. Gema Insani Pre.

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