Setyawan, Fariz, Yosep Dwi Kristanto, and Naufal Ishartono. “Preparing In-Service Teacher Using Dynamic Geometry Software”. International Journal of Engineering and Technology 7, no. 4.30 (November 30, 2018): 367–370. Accessed May 13, 2025. https://mail.sciencepubco.com/index.php/IJET/article/view/22317.