Saiful, Nur Afiqah Sahira, and Nor Faizah Razali. “Utilization of Fungal-Derived Chitosan from Flammulina Filiformis (Enoki Mushroom) and Pleurotus Ostreatus (Oyster Mushroom) As a Natural Coagulant in Wastewater Treatment”. Progress in Engineering Application and Technology, vol. 7, no. 1, May 2026, pp. 653-67, https://publisher.uthm.edu.my/periodicals/index.php/peat/article/view/22974.