Nguyen, Hong Minh, Lam Quoc Cuong Nguyen, Thanh Vuong Ngo, and Van Hieu Nguyen. “Method of Porosity Estimation from High Resolution CT Scan Images”. Petrovietnam Journal 80 (August 31, 2015): 27 - 31. Accessed April 29, 2025. http://www.pvj.vn/index.php/TCDK/article/view/615.