Chilaka, F.C. et al. 2024. Immobilization of Lactobacillus acidophilus β-galactosidase on chitosan obtained from the shells of the African giant snail, Achatina achatina. Tropical Journal of Natural Product Research (TJNPR). 8, 3 (Mar. 2024), 6693–6699. DOI:https://doi.org/10.26538/tjnpr/v8i3.32.