Gaya APA

Ash-shallabi, A, M. (2018). Biografi umar bin al-khathab (Cet. 1). jakarta: Pustaka Al-Kautsar.

Gaya MLA

Ash-shallabi, Ali, Muhammad. "Biografi umar bin al-khathab". Cet. 1 jakarta: Pustaka Al-Kautsar, 2018. BUKU CETAK (PRINTED BOOK).