ANALYSIS OF THE IMPACT OF SOCIAL MEDIA MARKETING, SERVICE QUALITY, AND SALES ACTIVITIES ON THE INCREASE IN SALES OF PROBLEMATIC FINANCING GUARANTEES (DEFAULT) THROUGH AUCTION: CASE STUDY AT ABC ISLAMIC BANK. Transekonomika [Internet]. 2024 Oct. 19 [cited 2026 Mar. 8];4(6):1135-46. Available from: https://transpublika.co.id/ojs/index.php/Transekonomika/article/view/768