Kirdponpattara, S., S. Chuetor, M. Sriariyanun, and M. Phisalaphong. “Bioethanol Production by Pichia Stipitis Immobilized on Water Hyacinth and Thin-Shell Silk Cocoon”. Applied Science and Engineering Progress, vol. 15, no. 3, July 2022, p. 4662, doi:10.14416/j.asep.2021.03.006.