Sangvatanachai, D., P. Pechpakdee, P. Jitto, and S. Boonlua. “The Recyclable Waste Management of Urban Communities of Maha Sarakham Municipality and Related Areas”. Journal of Multidisciplinary in Humanities and Social Sciences, vol. 7, no. 1, Feb. 2024, pp. 226-44, https://so04.tci-thaijo.org/index.php/jmhs1_s/article/view/268354.