Sidjara, Sahlan, and Muhammad Abdy. “Karakteristik Konikoida”. d\’Cartesian: Jurnal Matematika dan Aplikasi 5, no. 2 (October 26, 2016): 100–110. Accessed November 22, 2024. https://ejournal.unsrat.ac.id/v3/index.php/decartesian/article/view/14136.