base on the outline -essay to revise use reference and cite them. reference as below Reference Li, R. (2020). Garbage Classification. International STEAM Communications, 1(1). doi:10.37906/isteamc.202

base on the outline -essay to revise

use reference and cite them.

reference as below

Reference

Li, R. (2020). Garbage Classification. International STEAM Communications, 1(1).

doi:10.37906/isteamc.2020.2

Wang, B., Zhou, W., & Shen, S. (2018). Garbage Classification and Environmental Monitoring

based on Internet of Things. 2018 IEEE 4th Information Technology and Mechatronics Engineering Conference (ITOEC). doi:10.1109/itoec.2018.8740751

Wang, D., Kong, X., & Wang, Y. (2017). Difficulty and Measure Analysis of City Garbage

Classification. DEStech Transactions on Engineering and Technology Research,(Amsm). doi:10.12783/dtetr/amsm2017/14817

Yawen, W., Yu, C., & Yi, Y. (2019). Implicit Identity Experimental Research on the Garbage

Classification of College Students. Psychology of China, 1(9), 749-756. doi:10.35534/pc.0109048