Incidence of infrastructure on the satisfaction of customers and sellers of the Municipal Market of Agricultural Producers of San Pedro de Riobamba (EMMPA). idata [Internet]. 2016 Dec. 23 [cited 2024 Jul. 17];19(2):42-8. Available from: https://revistasinvestigacion.unmsm.edu.pe/index.php/idata/article/view/12814