Pramana, B. and Pratikto, I.S. 2025. THE ROLE OF SOLAR MARKET REGIONAL COMPANY SERVICES IN INCREASING THE INCOME OF NORTH KEPURAN MARKET TRADERS IN SURABAYA. Investama : Jurnal Ekonomi dan Bisnis. 11, 01 (Mar. 2025), 37–54. DOI:https://doi.org/10.56997/investama.v11i01.1824.