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Khaliq N, Kumalasari R, Arif. RANCANGAN PENAMBANGAN ENDAPAN BIJIH NIKEL LATERIT DAN ESTIMASI CADANGAN MENGGUNAKAN METODE ORDINARY KRIGING PADA PT. PUTRA DERMAWAN PRATAMA : DESIGN OF LATERITIC NICKEL ORE DEPOSIT MINING AND REVERSE ESTIMATION USING THE ORDINARY KRIGING METHOD AT PT. PUTRA DERMAWAN PRATAMA. JTP [Internet]. 2025 Aug. 4 [cited 2025 Oct. 5];25(2):76-83. Available from: https://e-journal.upr.ac.id/index.php/JTP/article/view/22410