“Positioning of the Company AGROCOMSA Versus the Commercial Agrochemical Houses of the City of Jalapa in the Year 2018”. Revista Científica Estelí, no. 30 (June 12, 2019): 70–75. Accessed October 10, 2025. https://revistas.unan.edu.ni/index.php/Cientifica/article/view/2211.