Bui, Trong Hieu, Trung Kien Ha, My Le Du, and Huu Nghi Huynh. “Design and Fabricating Extruder for Bio-Material 3D Printers”. VNUHCM Journal of Engineering and Technology 6, no. SI2 (December 31, 2024): 1-7. Accessed April 7, 2026. https://et.vnuhcmjournal.com.vn/index.php/et/article/view/1155.