'Arsy Tritura Ebsyar, H. DRILL HOLE SPACING ANALYSIS USING GEOSTATISTIC METHODS FOR EVALUATION OF SEAM C COAL RESOURCES IN PIT X BLOCK Y ON KUTAI BASIN, KAUBUN DISTRICT, KUTAI TIMUR REGENCY, EAST KALIMANTAN PROVINCE.

'Arsy Tritura Ebsyar, Hafidz. DRILL HOLE SPACING ANALYSIS USING GEOSTATISTIC METHODS FOR EVALUATION OF SEAM C COAL RESOURCES IN PIT X BLOCK Y ON KUTAI BASIN, KAUBUN DISTRICT, KUTAI TIMUR REGENCY, EAST KALIMANTAN PROVINCE.

'Arsy Tritura Ebsyar, Hafidz. DRILL HOLE SPACING ANALYSIS USING GEOSTATISTIC METHODS FOR EVALUATION OF SEAM C COAL RESOURCES IN PIT X BLOCK Y ON KUTAI BASIN, KAUBUN DISTRICT, KUTAI TIMUR REGENCY, EAST KALIMANTAN PROVINCE.