Elly, Erfin, and Sanny Virginia Aponno. “Aplikasi Direct Principal Component Analysis Untuk Analisis Sebaran Deposit Nikel Laterit Di Kabupaten Seram Bagian Barat-Provinsi Maluku”. Tanah Goyang : Jurnal Geosains 1, no. 2 (December 2, 2023): 106-117. Accessed November 21, 2025. https://ojs3.unpatti.ac.id/index.php/tanahgoyang/article/view/11553.