Analisis Sifat Mekanik Batuan Terhadap Kemampugaruan Bulldozer Dan Kemampugalian Excavator Untuk Mencapai Target Produksi Overburden PT Berau Coal: Analysis Of Mechanical Properties Of Rocks On The Capability Of Bulldozers And The Ability Of Backhoe Excavators To Achieve Overburden Production Targets At PT Berau Coal East Kalimantan. mineral. 2023;8(1):8-13. doi:10.33019/mineral.v8i1.4089