"Encyclopædia Britannica (2007): Related Articles to "Ahmed Yesevi, or Ahmad Yasawi, or Ahmed Yasavi (Turkish author)", accessed March 18, 2007".
בדיקה אחרונה ב-9 באפריל 2013.  "Encyclopædia Britannica (2007): Related Articles to "Ahmed Yesevi, or Ahmad Yasawi, or Ahmed Yasavi (Turkish author)", accessed March 18, 2007".