Huu PN, Van DN, Van BP. Application of response surface methodology for evaluating material removal in rate die-sinking EDM roughing using copper electrode. VNUHCM Journal of Engineering and Technology [Internet]. 1Aug.2019 [cited 7Apr.2026];1(1):20-7. Available from: https://et.vnuhcmjournal.com.vn/index.php/et/article/view/523