Tùng, Phạm, Võ Thọ, and Trương Nghĩa. “Determination of Skin Factor Using Two Different Methods: Pressure Transient Analysis and Production Data Analysis”. Science & Technology Development Journal - Engineering and Technology 4, no. SI3 (November 4, 2021): SI132-SI145. Accessed January 24, 2022. http://stdjet.scienceandtechnology.com.vn/index.php/stdjet/article/view/849.