Thabngern, N., L. Romyen, and S. Swasthaisong. “Effects of Waste Management Knowledge and People’s Participation on People’s Waste Management Efficiency in Sakon Nakhon Municipality”. Interdisciplinary Academic and Research Journal, vol. 2, no. 5, Oct. 2022, pp. 733-54, doi:10.14456/iarj.2022.122.