Gaya APA

Zarkasyi, I. (1994). Usuluddin ('Aqa'id) : 'Ala Madzhab Ahli-s-Sunnah Wal-l-Jama'ah . Ponorogo: Trimurti Press.

Gaya MLA

Zarkasyi, Imam. "Usuluddin ('Aqa'id) : 'Ala Madzhab Ahli-s-Sunnah Wal-l-Jama'ah". Ponorogo: Trimurti Press, 1994. Text.