ดุสิตโศภิตวงศ์ ทัพพ์ศมน, and นรเศรษฐ์โศภน สมชัย. 2020. “Influence of Fluid Mandrel on Area Reduction, Drawing Stresses and Thickness in Copper Tube Drawing”. Engineering and Technology Horizons 32 (3):13-18. https://ph01.tci-thaijo.org/index.php/lej/article/view/241186.