Obaida, Badia Abdul Razzaq Malla. “Study of Yeast Production of Pectinase Enzyme and the Effect of Different Physiological Conditions on Its Production”. International Journal for Research in Applied Sciences and Biotechnology 8, no. 6 (December 30, 2021): 117-121. Accessed January 27, 2022. https://www.ijrasb.com/ojs/index.php/ojs-ijrasb/article/view/494.