AVAGYAN, A.R.; ESMAIL, Moajer. ANALYSIS OF ACTUAL PROBLEMS OF SERVICEOLOGY. Proceedings of the YSU C: Geological and Geographical Sciences, Yerevan, Armenia, v. 47, n. 2 (231), p. 35–40, 2013. DOI: 10.46991/PYSU:C/2013.47.2.035. Disponível em: https://journals.ysu.am/index.php/proceedings-geol-geogr/article/view/vol47_no2_2013_pp035-040. Acesso em: 22 jul. 2024.