Canales-Ruiz, Ronald José. “Dielectric Requirement of Theophylline in a Ternary System for Its Subsequent Optimization of the Oral Formulation in the Laboratorio Mauricio Díaz Müller, UNAN-León”. Universitas (León) 6, no. 1 (July 1, 2015): 24–29. Accessed December 6, 2025. https://camjol.info/index.php/UNIVERSITAS/article/view/13855.