Ibáñez-Calero, Sandra L., and Kelly E. Loayza Afonso. “NATURAL COLORANTS FROM ZONGO VALLEY (BOLIVIA) AND THEIR TEXTILE APPLICATIONS”. Revista Investigación & Desarrollo 20, no. 1 (July 30, 2020). Accessed October 10, 2025. https://www1.upb.edu/revista-investigacion-desarrollo/index.php/id/article/view/207.