Utami Zuliana, Sri, Nurul Arfinanti, Wahyu Damar Jati, and Fadlilah Aziz Ramadhan. “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): 30–38. Accessed February 7, 2025. https://ejournal.uin-suka.ac.id/tarbiyah/quadratic/article/view/6507.