N. Chinedu, Shalom,  Blessing A. Imolorhe, and Franklyn N. Iheagwam. “Partial Purification and Kinetic Properties of Polygalacturonase from Chrysophyllum Albidum G. Don Fruit: doi.org 10.26538 Tjnpr V5i11.18”. Tropical Journal of Natural Product Research (TJNPR) 5, no. 11 (November 1, 2021): 2000–2004. Accessed April 4, 2025. https://tjnpr.org/index.php/home/article/view/346.