Purba, Mery Lani, Rika Meihayani Ginting, and Tia Novira Sucipto. 2022. “THE EFFECT OF QUANTITY AND QUALITY OF VARIETY PRODUCTS AND SERVICE ADVANTAGES ON STUDENTS’ SAVE ATTRACTION”. Jurnal Ekonomi 11 (02):1592-96. https://ejournal.seaninstitute.or.id/index.php/Ekonomi/article/view/1605.