Mustofa, Ginanjar, Stenly Tangkuman, and Hengky Luntungan. 2018. “SIMULASI KINEMATIKA MEKANISME LENGAN BACKHOE EXCAVATOR”. Jurnal Poros Teknik Mesin UNSRAT 7 (1). https://ejournal.unsrat.ac.id/v3/index.php/poros/article/view/18897.