Tran Cong Duong, Vuong Trung Hao, Do Thuy Khanh Linh, Hoang Van Nhat, Phan Thi Hong Nhu, Vo Nguyen Tuong Vy, Le Tan Cuong, Le Thanh Phong and Nguyen Tan Dung 2018. Study and manufacture of the low temperature vacuum drying system in pillot scale . Journal of Technical Education Science. 13, 4 (Jul. 2018), 1–8.