Competitive strategies implemented by the SME’s of the buffet sector in Estelí, in relation to the service market, during the first semester of 2016, Nicaragua. Revista Científica Estelí, [S. l.], n. 19, p. 61–78, 2016. Disponível em: https://revistas.unan.edu.ni/index.php/Cientifica/article/view/2896. Acesso em: 6 aug. 2025.