Isnani Isnani, S.B. Waluya, Dwijanto Dwijanto, and T.S.N.Asih. “Analysis Of Students’ Difficulties In Mathematical Proof Ability Viewed From An Epistemological Aspect”. Proceedings of International Conference on Science, Education, and Technology, vol. 8, no. 1, Oct. 2022, pp. 735-9, https://proceeding.unnes.ac.id/ISET/article/view/1830.