GARZÓN DÍAZ, W.; REYES MACÍS, G.; SALAZAR SOLANO, F. R. Sales System for Sánchez Bookstore, Siuna, 2016. Revista Universitaria del Caribe, [S. l.], v. 19, n. 2, p. 47–55, 2017. Disponível em: https://revistasnicaragua.cnu.edu.ni/index.php/caribe/article/view/4941. Acesso em: 22 jul. 2024.