Yépez Ponce, Dario Fernando, Esther Fidelina Gallón Gracia, and Héctor Mauricio Yépez Ponce. 2021. “IoT Laser Alarm System”. I+ T+ C- Research, Technology and Science 1 (16). Popayán, CO. https://revistas.unicomfacauca.edu.co/ojs/index.php/itc/article/view/352.