Idriz, Mesut. 2008. “Ahmad Yasawī As a Leading Early Central Asian Sūfī: Reexamination of His Perceptions on Tariqah (Order)”. Afkar: Jurnal Akidah Dan Pemikiran Islam 9 (1):39-50. https://vmis.um.edu.my/index.php/afkar/article/view/5871.