Olivo Olivo, Martha Alejandra, and Jaime Emanuel Padrón Calle. “Market Research for the Creation of a Craft Beer Factory in Canton la Troncal”. Perspectivas, vol. 4, no. 13, Jan. 2019, pp. 35-57, https://revistas.uniminuto.edu/index.php/Pers/article/view/2044.