Hazarika, Jiten, and Kuldeep Goswami. “Non-parametric Methods in the Analysis of Hydroclimatic Variables”. Thailand Statistician 19, no. 2 (March 29, 2021): 420–436. accessed September 14, 2026. https://ph02.tci-thaijo.org/index.php/thaistat/article/view/243862.