MANANOHAS, M. L. MASALAH TONGKAT DAN TALI : KARDIOID VERSUS ELIPS. d’Cartesian, [S. l.], v. 3, n. 2, p. 31–35, 2014. DOI: 10.35799/dc.3.2.2014.5457. Disponível em: https://ejournal.unsrat.ac.id/v3/index.php/decartesian/article/view/5457. Acesso em: 5 may. 2024.