An innovative approach of a supplementary mathematics course in engineering: Our learning experience in Guatemala. - J. Roberto Portillo; Alberth Alvarado; Jorge A. Samayoa (EDUCON, 2017)

Design and Implementation of Calc-ONE: A Gamified Approach to Reinforce Calculus Concepts. - Alberth Alvarado; J. Roberto Portillo; Joaquín Marroquín (FIE, 2024)