PERANCANGAN SISTEM APLIKASI PEMBELIAN DI TIKTOK SHOP DENGAN MENGGUNAKAN SOFTWARE “STAR UML”USE CASE DIAGRAM”ACTIVITY DIAGRAM”CLASS DIAGRAN”NORMALISASI FILE”MS.ACCESS. JEBI [Internet]. 2025 Nov. 29 [cited 2025 Dec. 14];2(5):802-11. Available from: https://ecosemica.net/index.php/ECONOMICA/article/view/184