Gazir, Abdul, and I Gede Adhitya Wisnu Wardhana. “Subgrup Non Trivial Dari Grup Dihedral”. EIGEN MATHEMATICS JOURNAL 1, no. 2 (December 31, 2019): 73–76. Accessed December 22, 2024. https://eigen.unram.ac.id/index.php/eigen/article/view/26.