Silvia Lilibeth Pin Sancán, Zelena Jazmín Sancán León, Telly Yarita Macías Zambrano. “Feasibility of the Production of Traditional Palo Bean Coffee: An Ancestral Vision in Barranco Colorado”. International Journal of Economic Perspectives, vol. 15, no. 1, Dec. 2021, pp. 49-61, https://ijeponline.com/index.php/journal/article/view/243.