NALSAL WINATA SINAGA, Dion; MARSELINA, Marselina. 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), [S. l.], v. 2, n. 6, p. 1605–1624, 2024. DOI: 10.54443/sj.v2i6.255. Disponível em: https://sinomicsjournal.com/index.php/sj/article/view/255. Acesso em: 27 sep. 2025.