Matondang, A., Simanjuntak, A., Simanjuntak, M. and Simangunsong, J. (2024) “¬¬¬Design of search information system using mobile application for car problems in Deli Serdang regency”, Jurnal Mandiri IT, 13(1), pp. 170–177. doi: 10.35335/mandiri.v13i1.326.