“The Effect of Adding Natural Coloring from Mangosteen Peel (Garcinia Mangostana L.) on the Organoleptic Characteristics of Putu Ayu Cake”. AGARICUS: Advances Agriculture Science & Farming 6, no. 2 (October 20, 2026): 219–224. Accessed October 25, 2026. https://ejournal.unwaha.ac.id/agaricus/article/view/7535.