STUDY OF PRODUCTIVITY ANALYSIS OF DIGGING LOADING IN GRAVEL MINING IN PT. GALUH CEMPAKA DISTRICTS CEMPAKA CITY BANJARBARU SOUTH KALIMANTAN PROVINCE

Author(s): Fajar Rizki Widiatmoko, Usman Usman, Yazid Fanani,

Date: Sep 30, 2021

Source: Journal of Earth and Marine Technology (JEMT)

Publisher: Lembaga Penelitian dan Pengabdian Masyakat (LPPM - ITATS), Institut Teknologi Adhi Tama Surabaya

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