jeltiani, skolastika, and Mohammad Istnaeny Hudha. “HIGH FIBER BISCUIT FORMULATION BASED ON PURPLE SWEET POTATO FLOUR AND KEPOK BANANA PEEL FLOUR AS AN ALTERNATIVE SNACK FOR CONSTIPATION SUFFERERS”. jurnal ATMOSPHERE 6, no. 1 (June 24, 2025): 16-22. Accessed July 14, 2026. https://ejournal.itn.ac.id/atmosphere/article/view/14676.