Kamaludheen, K. P. (2015). Khaleefa Usman. Islamic Publishing House.
Chicago Edition CitationKamaludheen, K P. Khaleefa Usman. Kozhikode: Islamic Publishing House, 2015.
Cita MLAKamaludheen, K P. Khaleefa Usman. Islamic Publishing House, 2015.
Atenció: Aquestes cites poden no estar 100% correctes.