Sumiyani, Ririn, Ryanto Budiono, Henni Matul Khamila, Tia Antika Pramesti, and Orchidea Rachmaniah. “Determination of Ethanol and Acetic Acid Content in Local Brands of Apple Vinegar: Gas Chromatography Test for Halal Requirements”. Journal of Halal Product and Research (JHPR) 7, no. 2 (December 16, 2024): 137–146. Accessed December 21, 2024. https://e-journal.unair.ac.id/JHPR/article/view/59453.