Dung, Nguyen Xuan, Doan Van Ban, and Do Thi Bich Ngoc. 2019. “A Method to Improve the Time of Computing Betweenness Centrality in Social Network Graph”. Vietnam Journal of Science and Technology 57 (3). Hanoi, VN:344-55. https://doi.org/10.15625/2525-2518/57/3/13166.