Sihombing DR, Daniela C, Siregar YC. Diversifikasi Olahan Ubi Jalar Ungu Menjadi Hard Candy Kaya Antioksidan. RETIPA [Internet]. 2023Oct.1 [cited 2024Nov.21];:52-60. Available from: https://ejournal.ust.ac.id/index.php/retipa/article/view/3174