Firdaus Ubaidillah, Kosala Dwidja Purnomo, and Bagus Julianto. “Fungsi Simetri Pada Koordinat Kutub Dan Karakteristiknya”. Prosiding SESIOMADIKA 6, no. 1 (July 1, 2026): 159–167. Accessed September 4, 2026. https://fkipunsika.id/index.php/sesiomadika/article/view/13643.