Wong V, A. M. Peningkatan Kualitas Pelayanan di UD Jaya Abadi Medan . BISMA Cendekia [Internet]. 2023 Jan. 31 [cited 2026 Jul. 30];3(2):28-32. Available from: https://ojs.politeknikcendana.ac.id/index.php/bisma/article/view/85