Persulessy, Elvinus, and Abdul Mahmud. “RING PRIMA DAN RING SEMIPRIMA”. BAREKENG: Jurnal Ilmu Matematika dan Terapan 7, no. 1 (March 1, 2013): 1-4. Accessed March 29, 2024. https://ojs3.unpatti.ac.id/index.php/barekeng/article/view/237.