Mindaryani, A., E. Rahayuningsih, A. Zahra, and E. E. K. Wardani. “Mass Transfer of Natural Dye Extraction and the Degradation Rate”. ASEAN Journal of Chemical Engineering, Vol. 23, no. 3, Jan. 2024, pp. 400-8, https://journal.ugm.ac.id/v3/AJChE/article/view/11870.