APA引文

Umar, N. Musibah dan Taubat: Khutbah Jum'at. (t.p).

Chicago Style (17th ed.) Citation

Umar, Nasaruddin. Musibah Dan Taubat: Khutbah Jum'at. (t.p).

MLA引文

Umar, Nasaruddin. Musibah Dan Taubat: Khutbah Jum'at. (t.p).

警告：这些引文格式不一定是100％准确.