Manoppo, Rio, Rudy Poeng, and Romels Cresano Apelles Lumintang. 2013. “PROSES PRODUKSI ALAT ANGKAT KENDARAAN NIAGA KAPASITAS 2 TON”. Jurnal Poros Teknik Mesin UNSRAT 2 (2). https://ejournal.unsrat.ac.id/v3/index.php/poros/article/view/2984.