Suwoto AD, Sjamsudin A. STRATEGI PEMASARAN MAKANAN RINGAN DI MASA PANDEMI MELALUI SOSIAL MEDIA INSTAGRAM STUD I KASUS : OUTLET DONUTDAY BOYOLANGU, TULUNGAGUNG. INTERNASIONAL CONFRENCE ON EDUCATION MANAJEMENT & SHARIA ECONOMICS [Internet]. 2022 Jan. 19 [cited 2026 Jul. 5];2(1):663-9. Available from: https://prosiding.stainim.ac.id/index.php/prd/article/view/149