Khuat, Van, Tam Mai, Nhan Ha, and Huy Ha. “A New Method in Synthesis of Polyurethane/Graphite Oxide Nanocomposites by Twin-Screw Extruder”. Science and Technology Development Journal 16, no. 4 (December 31, 2013): 45-53. Accessed May 5, 2024. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/1602.