Sarıtoprak, Z. (2003). Fethullah Gülen: A Sufi in His Own Way. Turkish Islam and the secular state, 156-169.
Citazione stile Chigago Style (17a edizione)Sarıtoprak, Zeki. "Fethullah Gülen: A Sufi in His Own Way." Turkish Islam and the Secular State 2003: 156-169.
Citatione MLA (8a ed.)Sarıtoprak, Zeki. "Fethullah Gülen: A Sufi in His Own Way." Turkish Islam and the Secular State, 2003, pp. 156-169.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.