TSATSULIN, A.N. Advertising Efforts as a Tool for Competition in the Market "Struggle" of Mobile Operators (First Quatrain). Administrative Consulting, [S. l.], n. 4, p. 61–77, 2019. DOI: 10.22394/1726-1139-2019-4-61-77. Disponível em: https://administrative-consulting.owebs.ru/article/view/13755. Acesso em: 8 nov. 2026.