Nguyen, H. C., T. T. T. Nguyen, T. T. Dang, A. D. Nguyen, and T. K. Nguyen. “Factors Affecting Production and Business Activities of Vietnam Oil and Gas Group in 2022 ”. Petrovietnam Journal, Vol. 4, May 2022, pp. 39 -45, doi:10.47800/PVJ.2022.04-04.