Ngo, Viet Hung, et al. “Research on Establishing a Predictive Model for Surface Roughness of Al6061 Aspherical Reflector in Single Point Diamond Turning Using Back Propagation Artificial Neural Networks”. Engineering and Technology For Sustainable Development, vol. 36, no. 2, Mar. 2026, pp. 044-53, https://jst.vn/index.php/etsd/article/view/1341.