Syamsudin A, Retawati A. OPTIMALISASI SISTEM PROMOSI ONLINE MELALUI KEGIATAN PELATIHAN PELAKU USAHA KOPI LOKAL DI KOTA PALANGKA RAYA. SJPKM [Internet]. 2023 May 24 [cited 2024 Dec. 4];2(5):529-34. Available from: https://ejournal.45mataram.or.id/index.php/swarna/article/view/529