Ba Ngoc, Thai, and Nguyen Ngọc Loan Anh. “Depositional Environment and Petroleum System Significance of Shale- And Siltstone-Dominated Source Rocks: Evidence from Well A-1X, Nam Con Son Basin, Offshore Vietnam”. Engineering And Technology Journal, vol. 10, no. 10, Oct. 2025, pp. 7600-8, doi:10.47191/etj/v10i10.33.