Amran Kasimin. (1995). Umar al-Khattab: Insan yang tajam fikiran. DBP.
Chicago Style (17th ed.) CitationAmran Kasimin. Umar Al-Khattab: Insan Yang Tajam Fikiran. K.L: DBP, 1995.
MLA (8th ed.) CitationAmran Kasimin. Umar Al-Khattab: Insan Yang Tajam Fikiran. DBP, 1995.
Warning: These citations may not always be 100% accurate.