Huu, T. N. “OPTIMIZATION OF OPERATING FRACTURING PARAMETERS FOR IMPROVING OIL PRODUCTION IN LOWER OLIGOCENE E RESERVOIR USING RESPONSE SURFACE METHOD, OFFSHORE VIETNAM: A CASE STUDY”. Vietnam Journal of Marine Science and Technology, vol. 18, no. 4, Mar. 2019, pp. 422-3, doi:10.15625/1859-3097/18/4/12534.