Reference
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https://sites.google.com/site/28846dd/yukh-smay-dntri-tawan-tk?tmpl=%2Fsystem%2Fapp%2Ftemplates%2Fprint%2F&showPrintDialog=1
https://www.folklore.ee/folklore/vol62/davidjants.pdf
http://armjazz75.am/en/history-en