Thien, Nguyen Luong, Nguyen Tien The, and Tran Nguyen Quyet. “RETRACTED: Manufacturing and Evaluation of Elastic Properties of Glass Fiber Reinforced Polymers Material”. Vietnam Journal of Mechanics 41, no. 3 (September 28, 2019): 243–255. Accessed November 9, 2025. https://vjmech.vast.vn/vjmech/article/view/13721.