'Ulwan, F. (1991). Misteri alam jin. Pustaka Hidayah.
Chicago Style (17th ed.) Citation'Ulwan, Firyal. Misteri Alam Jin. Pustaka Hidayah, 1991.
MLA (8th ed.) Citation'Ulwan, Firyal. Misteri Alam Jin. Pustaka Hidayah, 1991.
Warning: These citations may not always be 100% accurate.