Karim, MA, and John Taylor Wetterhan. “A Comparative Study of Solid Waste Management in the United States, Europe and Asia”. Annals of Civil and Environmental Engineering 4, no. 1 (April 17, 2020): 003–011. Accessed September 11, 2025. https://www.civilenvironjournal.com/acee/article/view/acee-aid1019.