Wardani , Ratih Kusuma, and Djamilah Arifiyana. “The Effect of Soaking Time and Temperature of Acetic Acid Solution to the De-Crease of Calcium Oxalate Levels in Porang Tubers ”. Nusantara Science and Technology Proceedings, Nov. 2020, pp. 145-9, https://doi.org/10.11594/nstp.2020.0522.