위계
http://kristof.blogs.nytimes.com/2014/06/24/islamic-extremists-pose-new-risks-for-religious-minorities-in-iraq/?_php=true&_type=blogs&_r=0%7CCale
http://kristof.blogs.nytimes.com/2014/06/24/islamic-extremists-pose-new-risks-for-religious-minorities-in-iraq/?_php=true&_type=blogs&_r=0%7CCale
야지디
The Religion of the Yezidis
https://books.google.com/books?ei=AScPVMjKKeGu8AH7m4CoDA&id=_47XAAAAMAAJ&dq=yezidi+monotheist&focus=searchwithinvolume&q=monotheistichttps://web.archive.org/web/20160806033017/http://www.ecmi.de/fileadmin/downloads/publications/JEMIE/2007/2-2007-Szakonyi.pdf
https://web.archive.org/web/20160806033017/http://www.ecmi.de/fileadmin/downloads/publications/JEMIE/2007/2-2007-Szakonyi.pdfhttp://www.ecmi.de/fileadmin/downloads/publications/JEMIE/2007/2-2007-Szakonyi.pdf
http://www.ecmi.de/fileadmin/downloads/publications/JEMIE/2007/2-2007-Szakonyi.pdfhttps://web.archive.org/web/20150924092613/http://www.rubincenter.org/meria/2002/12/oleary.pdf
https://web.archive.org/web/20150924092613/http://www.rubincenter.org/meria/2002/12/oleary.pdfhttp://www.rubincenter.org/meria/2002/12/oleary.pdf
http://www.rubincenter.org/meria/2002/12/oleary.pdf웨이백 머신 - 위키백과, 우리 모두의 백과사전
https://ko.wikipedia.org/wiki/%EC%9B%A8%EC%9D%B4%EB%B0%B1_%EB%A8%B8%EC%8B%A0https://web.archive.org/web/20150923195756/http://www.ca-c.org/journal/2003/journal_eng/cac-03/23.chieng.shtml
https://web.archive.org/web/20150923195756/http://www.ca-c.org/journal/2003/journal_eng/cac-03/23.chieng.shtmlPage not found – Central Asia and the Caucasus
http://www.ca-c.org/journal/2003/journal_eng/cac-03/23.chieng.shtml