EFEKTIVITAS KOMUNIKASI PEMASARAN UMKM KOPI DI ERA PANDEMI COVID-19. jor. sains. kom. peng. masy. [Internet]. 2021 Oct. 27 [cited 2025 Jul. 13];5(5):684-96. Available from: https://ejournal-skpm.ipb.ac.id/index.php/jskpm/article/view/882