M. Mohammad Zainol, T.T. Hoe, M.A. Mohammed Yussuf, N.A. Saidina Amin, Carbon Cryogel Preparation via Urea-furfural Gel Synthesis as an Adsorbent for CO2 Capture Application, Chemical Engineering Transactions. 89 (2021) 187-192. doi:10.3303/CET2189032.