Villar Quintana, Anthony. “Cave Paintings of Hunter-Gatherers in Northeastern Peru: Marañón and Utcubamba Basins”. ISHRA, Revista del Instituto Seminario de Historia Rural Andina, no. 6 (August 10, 2021): 33–52. Accessed July 17, 2024. https://revistasinvestigacion.unmsm.edu.pe/index.php/ishra/article/view/20986.