Or Yang Jai Xien; Siti Norsaffirah Zailan; Norsuria Mahmed; Mohd Natashah Norizan; Ili Salwani Mohamad. Ground Coffee Waste-Derived Activated Carbon: A Sustainable Adsorbent and Photocatalyst for Effective Methylene Blue Dye Degradation. IJNeaM 2024, 17, 95-101.