Yulianto, Tony, Moh. Sofyan, and Nur Ita Ulfaniyah. “Penentuan Kadar Garam Menggunakan Metode Interpolasi Spline Di Madura”. Zeta - Math Journal 3, no. 1 (May 22, 2017): 27–30. Accessed January 25, 2026. http://journal.uim.ac.id/index.php/zeta/article/view/42.