Rincón-Joya, Miryam, Jose Jose Barba-Ortega, and Elaine París. “Obtaining Samples of Oxides at Low Cost”. Revista UIS Ingenierías 18, no. 3 (April 5, 2019): 33–38. Accessed August 24, 2024. https://revistas.uis.edu.co/index.php/revistauisingenierias/article/view/9269.