SUVARYAN, S.R. ESSENCE AND MISSION OF THE SERVICE. Proceedings of the YSU C: Geological and Geographical Sciences, Yerevan, Armenia, v. 54, n. 1 (251), p. 62–65, 2020. DOI: 10.46991/PYSU:C/2020.54.1.062. Disponível em: https://journals.ysu.am/index.php/proceedings-geol-geogr/article/view/vol54_no1_2020_pp062-065. Acesso em: 9 may. 2024.