situmeang, murni, and Amrizal. 2024. “RANCANG BANGUN SISTEM E-COMMERCE BERBASIS CODEIGNETER FRAMEWORK PADA UMKM THRIFT M.S”. Computer and Science Industrial Engineering (COMASIE) 8 (4):8-17. https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/6983.