Ajnai L. ajnai@mnums.edu.mn Purevdolgor L. purevdolgor@mnums.edu.mn Jargalbat P. jargalbat@mnums.edu.mn Javzmaa Ts. javzmaa.ts@mnums.edu.mn Baasandorj Ch. baasandorj@mnums.edu.mn Akhit T. akhit@mnums.edu.mn galbadrakh Ch. galbadrakh@mnums.edu.mn Baigali B. baigali@mnums.edu.mn
