Maatuil, Sueharti, Hanny Komalig, and Charles Mongi. “Penggunaan Kernel Principal Component Analysis Fungsi Polinomial Dalam Menyelesaikan Masalah Pengelompokan Plot Peubah Ganda”. d’Cartesian 4, no. 1 (February 10, 2015): 76–85. Accessed May 2, 2024. https://ejournal.unsrat.ac.id/v3/index.php/decartesian/article/view/8101.