“KALMUL Software Assited by GeoGebra (A New Media for Learning Multivariable Calculus) ”. Quadratic: Journal of Innovation and Technology in Mathematics and Mathematics Education 3, no. 1 (April 29, 2023): 50–62. Accessed February 4, 2026. https://ejournal.uin-suka.ac.id/tarbiyah/quadratic/article/view/6507.