Nguyen, T., and T. Canh. “Researching Trends of Rainfall Change in Ninh Thuan in the Context of Climate Change by the Non-Parametric Method”. Science & Technology Development Journal: Natural Sciences, Vol. 5, no. 1, Jan. 2021, pp. 957-68, doi:https://doi.org/10.32508/stdjns.v5i1.939.