L. Van Tao, B. Tien Long, N. Thi Hong Minh, H. Tien Dung, D. Van Thuc, và P. Hoang Cuong, Prediction of machining performances in powder mixed electro-discharge machining to process skd61 steel by response surface methodology, vn, vol 75, số p.h 4, tr 1617-1630, 1715706000.