Nguyen, Van Hung, and Phuoc Hao Le. 2015. “Modelling of the Permeability of a Weakly Consolidated Otter Sherwood Sandstone under Proportional Triaxial Compression Stress Paths”. Petrovietnam Journal 10 (October), 44 - 55. https://tapchidaukhi.com/index.php/TCDK/article/view/848.