Freire, Wilma B. “Guide for the Adaptation, Validation, Application and Analysis of Data from the ‘NOVA 27 UPF Categories Tracker’ in Ecuador”. Bitácora Académica 14 (September 13, 2023): 6–12. Accessed May 17, 2024. https://revistas.usfq.edu.ec/index.php/bitacora/article/view/3094.