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Ucok Mulyo Sugeng, Deniyanto. PERHITUNGAN LENGAN EXCAVATOR KAPASITAS 450 KG UNTUK LABORATORIUM. tekno [Internet]. 2020Jul.31 [cited 2024Mar.28];7(2):92-106. Available from: https://jurnal.sttmcileungsi.ac.id/index.php/tekno/article/view/11