APA-referens (7:e uppl.)

Ḵẖān, M. Ḥ. (1963). Hazrat Abu Bakr, the first Caliph of Islam. Sh. Muhammad Ashraf.

Chicago-referens (17:e uppl.)

Ḵẖān, Muḥammad Ḥabīburraḥmān. Hazrat Abu Bakr, the First Caliph of Islam. Lahore: Sh. Muhammad Ashraf, 1963.

MLA-referens (8:e uppl.)

Ḵẖān, Muḥammad Ḥabīburraḥmān. Hazrat Abu Bakr, the First Caliph of Islam. Sh. Muhammad Ashraf, 1963.