Janan, Tuhfatul. “On Quinary Semiring and Properties of Its Special Subsets”. Jurnal Matematika, Statistika dan Komputasi 21, no. 1 (September 15, 2024): 78-87. Accessed January 19, 2025. http://118754.2bdvi7ajx.asia/index.php/jmsk/article/view/35615.