DAFTAR RUJUKAN
GSK980TDi Turning Machine CNC system, 2021. GSK CNC EQUIPMENT CO., LTD.
2nd, Guangzhou China.
GSK980TDc Turning Machine CNC system. 2013. GSK CNC EQUIPMENT CO., LTD.
1ST, June No.22 Guanda Road, Luogang District, Guangzhou, 510530 China
GSK 980-TDi CNC TURNING 70