Wahyuni, A., S. Budi Waluya, N. Rachmani Dewi, and D. Wahyu Hidayati. “Development of Geogebra Assisted Teaching Materials Surface Area of Roying Objects”. Proceedings of International Conference on Science, Education, and Technology, vol. 8, no. 1, Oct. 2022, pp. 1311-4, https://proceeding.unnes.ac.id/ISET/article/view/1919.