SUVARYAN, S.R. VISION OF SERVICE AND NECESSITY OF SERVICEOLOGY. Proceedings of the YSU C: Geological and Geographical Sciences, Yerevan, Armenia, v. 49, n. 3 (238), p. 42–50, 2015. DOI: 10.46991/PYSU:C/2015.49.3.042. Disponível em: https://journals.ysu.am/index.php/proceedings-geol-geogr/article/view/vol49_no3_2015_pp042-050. Acesso em: 3 may. 2024.