Leonardo, Tiurniari Purba. PENGARUH KUALITAS PELAYANAN DAN PROMOSI TERHADAP LOYALITAS PELANGGAN PT WAP LOGISTIKINDO. Rekaman [Internet]. 2020Jun.25 [cited 2025Dec.20];4(2):442 -52. Available from: https://ojs.jurnalrekaman.com/index.php/rekaman/article/view/74