YÁBAR, B. Y. La Viabilidad del Modelo de John Murra en el Valle de Sama. Iberoamerican Business Journal, [S. l.], v. 3, n. 2, p. 39–48, 2020. DOI: 10.22451/5817.ibj2019.vol3.2.11032. Disponível em: https://journals.epnewman.edu.pe/index.php/IBJ/article/view/178. Acesso em: 8 may. 2024.