Cevallos, Carlos Eloy Soledispa, Ingrid Dayana Jiménez Rodríguez, and Luz del Carmen Galarza Santana. “Financial Evaluation of Annatto Paste Production from Ancestral Knowledge in Manta Blanca”. International journal of economic perspectives 15, no. 1 (June 26, 2021): 38–48. Accessed June 29, 2025. http://ijeponline.org/index.php/journal/article/view/8.