“PEMODELAN DAN ESTIMASI SUMBERDAYA NIKEL LATERIT SITE PULAU PAKAL PT. ANTAM (PERSERO) TBK UBP NICKEL MALUKU UTARA MENGGUNAKAN METODE INVERSE DISTANCE WEIGHT DAN ORDINARY KRIGING: Wawan AK Conoras, Mardiman Tabaika Fakultas Teknik Universitas Muhammadiyah Maluku Utara Ternate Email: wawanmine01@gmail.com”, EJD, vol. 12, no. 1, pp. 19–28, Mar. 2019, Accessed: Oct. 18, 2025. [Online]. Available: https://jurnal.ummu.ac.id/index.php/dintek/article/view/178