PEMANFAATAN WHATSAPP BUSINESS PADA UMKM DI INDONESIA: KAJIAN LITERATUR NARATIF. j. sains manaj. [Internet]. 2026 Aug. 31 [cited 2026 Aug. 15];8(2):1-10. Available from: https://ejurnal.ars.ac.id/index.php/jsm/article/view/2311