@book{Harutyunyan:2022,
author
=
" .Harutyunyan",
title
=
"International Scientific Conference "Issues of Competitive Education and Science in the Ever-Changing World", ISBN: 9789939873121",
publisher
=
"Northern University",
address
=
"Yerevan",
year
=
"2022",
pages
=
"335",
note
=
"Ed. Avetik Harutyunyan",
}