Musk, B. A. (1989). The unseen face of islam: Sharing the gospel with ordinary muslims (ed.). Evangelical missionary alliance.

Musk, Bill A. The Unseen Face of Islam: Sharing the Gospel with Ordinary Muslims. ed. East sussex: Evangelical missionary alliance, 1989.

Musk, Bill A. The Unseen Face of Islam: Sharing the Gospel with Ordinary Muslims. ed. Evangelical missionary alliance, 1989.