Affandi, M., and A. B. Santosa. “The Influence of the Number of Employed Population, Gross Regional Domestic Product, and Investment on Regional Original Income in Regencies/Cities of Central Java Province”. Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE), Vol. 9, no. 1, Apr. 2026, pp. 9696-08, doi:10.31538/iijse.v9i1.9862.