Br. Saragih, M. T. and Hartojo, N. (2026) “Integrating Geospatial Big Data and Machine Learning for Village Level Rural Urban Classification: Evidence From Toba Regency”, Engineering, MAthematics and Computer Science Journal (EMACS), 8(1), pp. 27–36. doi: 10.21512/emacsjournal.v8i1.14159.