Olivar, Jhonny, and Silverio Navarro. “Guide for Updating the Quality Management System According to ISO 9001: 2015”. GACETA DE PEDAGOGÍA, no. 36 (December 1, 2017): 161–179. Accessed November 8, 2024. https://mail.revistas.upel.edu.ve/index.php/gaceta/article/view/571.