Gaya APA

CHITTICK, , W, C. et al (2001). The sufi path of knowledge = Pengetahuan spiritual (Cet. 1). Yogyakarta: Qalam.

Gaya MLA

CHITTICK, , William, C.. et al. "The sufi path of knowledge = Pengetahuan spiritual". Cet. 1 Yogyakarta: Qalam, 2001. Text.