Baharudin, A.N. and Risal, A.R. and Zakaria, R. and Idress, M. and Redzuan, F.R. (2022) Molecular Characteristics of Fatty Acid Methyl Ester (FAME) in Waxy Crude Oil as a Flow Improver. Chemical Engineering Transactions, 97. pp. 295-300. ISSN 22839216

Risal, A.R. and Manan, M.A. and Yekeen, N. and Azli, N.B. and Samin, A.M. and Tan, X.K. (2019) Experimental investigation of enhancement of carbon dioxide foam stability, pore plugging, and oil recovery in the presence of silica nanoparticles. Petroleum Science, 16 (2). pp. 344-356. ISSN 16725107

Yekeen, N. and Manan, M.A. and Idris, A.K. and Samin, A.M. and Risal, A.R. (2018) Mechanistic study of nanoparticles�surfactant foam flow in etched glass micro-models. Journal of Dispersion Science and Technology, 39 (5). pp. 623-633. ISSN 01932691

Yekeen, N. and Manan, M.A. and Idris, A.K. and Samin, A.M. and Risal, A.R. (2017) Experimental investigation of minimization in surfactant adsorption and improvement in surfactant-foam stability in presence of silicon dioxide and aluminum oxide nanoparticles. Journal of Petroleum Science and Engineering, 159. pp. 115-134. ISSN 09204105