Putra D, Daniawan B, Suwitno S, Wijaya A. The Analysis and Design Marketplace Information Systems Web-Based of Electronic Repair Service Providers with Haversine Method. bit-Tech [Internet]. 2019 Nov. 1 [cited 2024 Nov. 27];2(1):53-62. Available from: https://jurnal.kdi.or.id/index.php/bt/article/view/89