Adnan, Nadhila Isara, Naufal Bachri and Rahmaniar 2025. THE INFLUENCE OF THE 4 FS (FAMILY, FRIENDS, FANS, AND FOLLOWERS) ON PURCHASING DECISIONS FOR WARDAH COSMETIC PRODUCTS (CASE STUDY: IN THE CITY OF BIREUEN). Multidiciplinary Output Research For Actual and International Issue (MORFAI). 5, 5 (Sep. 2025), 5233–5243. DOI:https://doi.org/10.54443/morfai.v5i5.4068.