ANALISA  INOVASI PRODUK MARTABAK MANIS BERBAHAN DASAR TEPUNG UBI UNGU DI KOTA CIREBON. UTAMA [Internet]. 2025 Apr. 14 [cited 2026 May 11];3(01):61-8. Available from: https://journal.poltekparprima.ac.id/index.php/utama/article/view/59