Castro, Pilar, Yabed Contreras, Delia Laca, and Keiko Nakamatsu. “Café De Especialidad: Alternativa Para El Sector Cafetalero Peruano”. Journal of Economics, Finance and Administrative Science 9, no. 17 (December 30, 2004): 61–84. Accessed May 20, 2024. https://revistas.esan.edu.pe/index.php/jefas/article/view/370.