USMAN, A. (1976). Dua Puluh Lima Abdullah: Sahabat Rasulullah Saw. turut membina umat baru. Bulan Bintang.
Chicago Style (17th ed.) CitationUSMAN, Ali. Dua Puluh Lima Abdullah: Sahabat Rasulullah Saw. Turut Membina Umat Baru. Bulan Bintang, 1976.
MLA (8th ed.) CitationUSMAN, Ali. Dua Puluh Lima Abdullah: Sahabat Rasulullah Saw. Turut Membina Umat Baru. Bulan Bintang, 1976.
Warning: These citations may not always be 100% accurate.