De la Cruz Mena, Doris, María Cristina Arnaut Agramonte, Wanda Marina Román Santana, and Judith Marcela Martínez Alonzo. “Comparative Analysis of Physical and Chemical Contamination Levels in the Ozama River Using the X-Ray Fluorecence Technique, Period 2020 to 2024”. MENTOR revista de investigación educativa y deportiva 3, no. 8 (May 19, 2024): 341–363. Accessed April 22, 2026. https://revistamentor.ec/index.php/mentor/article/view/8086.