Wardhani, D. H., J. A. Vázquez, D. A. Ramdani, A. Lutfiati, N. Aryanti, and H. Cahyono. “Enzymatic Purification of Glucomannan from Amorphophallus Oncophyllus Using α-Amylase”. Bioscience Journal, vol. 35, no. 1, Feb. 2019, pp. 277-88, doi:10.14393/BJ-v35n1a2019-41766.