Syedd-León, Randall, Manuel Sandoval-Barrantes, Humberto Trimiño-Vásquez, Luis Roberto Villegas-Peñaranda, and Gerardo Rodríguez-Rodríguez. “Revisiting the Fundamentals of P-Nitrophenol Analysis for Its Application in the Quantification of Lipases Activity. A Graphical Update”. Uniciencia 34, no. 2 (July 31, 2020): 31–43. Accessed April 25, 2026. https://www.revistas.una.ac.cr/index.php/uniciencia/article/view/13584.