Phan, T., Tran, S., & Pham, T. (2022). Assessing state management of the environment in Thanh Sơn district, Phu Tho province. Science & Technology Development Journal: Economics- Law & Management, 6(2), 2727-2738. https://doi.org/https://doi.org/10.32508/stdjelm.v6i2.962