Yandri, Yandri, et al. “Immobilization of Aspergillus Fumigatus α-Amylase via Adsorption onto Bentonite Chitosan for Stability Enhancement”. Emerging Science Journal, vol. 7, no. 5, Oct. 2023, pp. 1811-26, doi:10.28991/ESJ-2023-07-05-023.