YERIZON, .; ARNAWA, I Made; FITRIANI, Nisa; TAJUDIN, Nor’ain Mohd. Constructing Calculus Concepts through Worksheet Based Problem-Based Learning Assisted by GeoGebra Software. HighTech and Innovation Journal, [S. l.], v. 3, n. 3, p. 282–296, 2022. DOI: 10.28991/HIJ-2022-03-03-04. Disponível em: https://hightechjournal.org/index.php/HIJ/article/view/304. Acesso em: 17 sep. 2025.