Sanjoyo, Mawardi Purbo. 2022. “"GUESSING NUMBERS&Quot; GAMBLING IN SURABAYA IN THE 1950-1980S: PERJUDIAN MENEBAK ANGKA DI SURABAYA TAHUN 1950-1980-AN”. SOLIDARITY: Journal of Social Studies 2 (1):13-26. https://doi.org/10.35719/solidarity.v2i1.81.