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Keywords Bucket tooth, Life cycle cost, Potensial Margin. Cross slope, evaluasi, grade jalan, desain geometri, super elevasi K-Means, Fuzzy C Means, Pembelajaran Tanpa Pengawasan, Kualitas Batubara, Inventori Analitik Manajemen Getaran, Peledakan, Scaled Distance Misfire, Elektronik Detonator, Double Initiation Perawatan Permukaan Jalan Tambang, Road Analysis Control, Road Severity Index Real-time Condition Monitoring, Haulroad Maintenance, TPT XXXI PERHAPI 2022 Real-time Condition Monitoring, Predictive Maintenance Reklamasi, Keanekaragaman Hayati, Ekosistem Slope stability radar, peledakan, longsor, peringatan dini Strategic Plan Penambangan, Optimasi Reserve, Baku Mutu Air Tambang, tambang terbuka, kestabilan lereng, statistika terapan Underground Mines, Safe and Productive, Zero Fatality, Fatal Risk Management (FRM) Wait For Blasting Time, Multiple Firing, Signature Holes auger mining, konservasi batubara, cadangan marginal disposal, FoS, overall slope, counterweight, cut, fill lapisan penudung, difusi oksigen, oksidasi, batuan berpotensi asam (Potential Acid Forming/PAF), air asam tambang metode remote sensing, metode terestris, topografi stockpile/batu bara, ROM supply risk weighted-overlay, GIS, bahaya, geologi, bencana, sistem, manajemen zeolit alam, partikel nano, adsorpsi, air asam tambang, isotermal adsorpsi, kinetika adsorpsi

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Perdana, Alim, Kaltim Prima Coal, PT, Indonesia

Vol 3, No 1 (2021): April - Articles
PURCHASING STRATEGIES IN THE KRALJIC PORTFOLIO MATRIX – A CASE STUDY IN OPEN PIT COAL MINING
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