Fernandez, D., G. Umar, I. Dewata, S. Amar, and A. Juanda. “NOx Content Analysis In Ambient Air: Public Policy Perspectives And Implications For Sustainable Development In Padang City”. AEEJ : Journal of Automotive Engineering and Vocational Education, Vol. 6, no. 2, Sept. 2025, pp. 93-02, doi:https://doi.org/10.24036/aeej.v6i2.291.