Supriyono S, Haryanti N. THE INFLUENCE OF INSTAGRAM ADVERTISING MEDIA, SERVICE QUALITY AND SALES PROMOTION ON CUSTOMER LOYALTY FOR CLASSIC NYOCLATE BEVERAGE PRODUCTS IN TULUNGAGUNG DISTRICT. ECO EDU ENTRE [Internet]. 2023Dec.12 [cited 2026Jul.17];3(3):921-32. Available from: https://www.ije3.esc-id.org/index.php/home/article/view/218