[1]T. K. Pham, T. T. T. Cao, V. N. Le, H. N. Dinh, and A. T. Tran, “Variation of carbonate buffer and air- water (CO\(_{2}\)) flux in Ha Long Bay”, <i>VJMST</i>, vol. 25, no. 3, pp. 321–330, Sep. 2025.