Febrina Sari Nst. THE INFLUENCE OF PROMOTION AND APPLICATION FEATURES ON INCREASING ONLINE TRANSACTIONS OF LIVIN MERCHANT APPLICATION USERS WITH USER SATISFACTION AS AN INTERVENING VARIABLE (CASE STUDY AT BANK MANDIRI KC MEDAN IMAM BONJOL). IHERT [Internet]. 2025 Aug. 30 [cited 2026 Jan. 13];7(1):240-52. Available from: http://proceeding.unefaconference.org/index.php/IHERT/article/view/496