дэлгэрэнгүйг:
https://catalog.must.edu.mn/cgi-bin/koha/opac-detail.pl?biblionumber=113843&query_desc=kw%2Cwrdl%3A%20%D0%A5%D0%B0%D0%BB%D0%B0%D0%B0%D0%BB%D1%82