Nguyen, Thuy-Anh, Hai-Bang Ly, Abolfazl Jaafari, and Thai Binh Pham. “Estimation of Friction Capacity of Driven Piles in Clay Using Artificial Neural Network”. Vietnam Journal of Earth Sciences 42, no. 3 (June 26, 2020): 265–275. Accessed December 4, 2021. https://vjs.ac.vn/index.php/jse/article/view/15182.