Nalsal Winata Sinaga, D. ., & Marselina, M. (2024). Analysis Externality Flyover as Public Goods on Economic and Social Conditions (Study Case: Flyover of Jl. Sultan Agung). International Journal of Social Science, Education, Communication and Economics (SINOMICS JOURNAL), 2(6), 1605–1624. https://doi.org/10.54443/sj.v2i6.255