Research, design development bed, Research lubrication system and cooling system of CNC gear hobbing machine: Bachelor thesis of machinery manufacturing technology / Vu Van Dao, Cao Thanh Dai, Phan Thanh Nha; Le Linh, Dang Minh Phung, Nguyen Ba Truong Dai (supervisor). -- Tp.HCM: Đại học Sư phạm Kỹ thuật Tp. Hồ Chí Minh, 2017