Mohd Noor, Siti Fatimah, et al. “Fermentation Factors Optimization to Enhance Yeast Performance in Producing High Yield of Bioethanol”. Multidisciplinary Applied Research and Innovation, vol. 2, no. 2, May 2021, pp. 278–286, https://publisher.uthm.edu.my/periodicals/index.php/mari/article/view/1850.