Nguyen, Van Hieu, Hong Minh Nguyen, Ngoc Quoc Phan, and Huy Giao Pham. “Development of HFU-Based Permeability Prediction Models Using Core Data for Characterisation of a Heterogeneous Oligocene Sand in the Nam Con Son Basin”. Petrovietnam Journal 100 (November 30, 2021): 33 - 39. Accessed October 25, 2025. http://www.pvj.com.vn/index.php/TCDK/article/view/775.