Naprom S, Piewthongngam K, Athipanyakul T. Determination of order pattern frequency analysis using the copula method. kasetsart J. Soc. Sci. [Internet]. 2019 Dec. 13 [cited 2024 May 3];41(1):75–82. Available from: https://so04.tci-thaijo.org/index.php/kjss/article/view/229231