MODEL TRANSPORTASI PENGANGKUTAN BATUBARA …
model transportasi pengangkutan batubara ke lokasi dumping dengan metode sudut barat laut dan metode biaya terendah pada pt. bukit asam (persero), tbk transportation model of coal hauling to dumping location by north-west corner rule and least-cost rule at pt. bukit asam (persero),tbk fredy william jhon1, makmur asyik2, bochori3