| Petroleum sludge treatment and disposal: A review OA Johnson, AC Affam Environmental Engineering Research 24 (2), 191-201, 2019 | 244 | 2019 |
| Potential uses of waste sludge in construction industry: a review OA Johnson, M Napiah, I Kamaruddin Research Journal of Applied Sciences, Engineering and Technology 8 (4), 565-570, 2014 | 86 | 2014 |
| Microbial population dynamics in constructed wetlands: Review of recent advancements for wastewater treatment RJ Rajan, JS Sudarsan, S Nithiyanantham Environmental Engineering Research 24 (2), 181-190, 2019 | 83 | 2019 |
| Encapsulation of petroleum sludge in building blocks OA Johnson, N Madzlan, I Kamaruddin Construction and Building Materials 78, 281-288, 2015 | 36 | 2015 |
| Evaluation of waste cooking oil as sustainable binder for building blocks OA Johnson, M Napiah, I Kamaruddin, RK Mohamad International Conference on Civil and Environmental Engineering (ICCEE 2018 …, 2018 | 19 | 2018 |
| Application of hybrid ultrasonic cavitation/adsorption and coagulation for treatment of palm oil mill effluent JOA Wong Ging King, Lee Man Djun, Augustine Chioma Affam, Wong Chee Chung ... AIP Conference Proceedngs 2124 (1), 020008, 2019 | 12* | 2019 |
| Activation of persulphate by heat, pH, and transition metals for removal of COD and colour from biologically treated palm oil mill effluent JOA Tay Huat Hua, Augustine Chioma, Wong Chee Chung, Wong Chee Swee AIP Conference Proceedings 2124 (1), 020007, 2019 | 5 | 2019 |
| Effect of curing age on the compressive strength of petrovege blocks OA Johnson, N Madzlan, IB Kamaruddin Advanced Materials Research 980, 91-96, 2014 | 4 | 2014 |
| Building blocks from petroleum sludge: Leachability and toxicity studies OA Johnson, N Madzlan, I Kamaruddin, OO Oloruntobi International Journal of Applied Engineering Research 10 (24), 45479-45481, 2015 | 3 | 2015 |
| Design Expert Application for Optimization of Ag/AgBr/TiO2 Visible Light Photocatalyst Preparation AC Affam, WC Chung, PL Lau, OA Johnson, KC Seong, L Baloo, ... ICCOEE2020: Proceedings of the 6th International Conference on Civil …, 2021 | 2 | 2021 |
| Modification of Malaysia bituminous binder using waste polystyrene OA Johnson, I Kamaruddin, I Akbar Proceedings of AICCE'19: Transforming the Nation for a Sustainable Tomorrow …, 2020 | 2 | 2020 |
| Traffic kinematic waves at road hump zone: Perceptions and analysis J Ben-Edigbe, O Johnson British Journal of Applied Science & Technology 4 (7), 1109-1118, 2014 | 2 | 2014 |
| Effect of Silica Fume and Synthetic Fibre towards the Compressive Strength of Modified Crumb Rubber Cement Mortar MR Bin Kabit, SSR Syed Sarkawi, MDA Mannan, JO Adebayo Defect and Diffusion Forum 411, 135-142, 2021 | 1 | 2021 |
| Design Expert Application for Optimization of Ag/AgBr/TiO AC Affam, WC Chung, PL Lau, OA Johnson, KC Seong, L Baloo, ... ICCOEE2020: Proceedings of the 6th International Conference on Civil …, 2020 | | 2020 |
| Optimal maintenance planning for Trans-West Africa coastal highway infrastructure using HDM-4 O Oloruntobi, N Madzlan, K Ibrahim, O Johnson Engineering Challenges for Sustainable Future: Proceedings of the 3rd …, 2016 | | 2016 |
| Application of Artificial Neural Network in Predicting Compressive Strength of Vege Block HS ABDULRAHMAN, OA JOHNSON, N MADZLAN, I KAMARUDDIN, ... Maxwell Scientific Publication Corp., 2016 | | 2016 |
| Application of Artificial Neural Network in Predicting Compressive Strength of Vege Block OA Johnson, N Madzlan, I Kamaruddin, OO Oloruntobi, HS Abdulrahma Research Journal of Applied Sciences, Engineering and Technology 12 (1), 37-42, 2016 | | 2016 |
| Low Energy Compaction of Aggregate Packing Mechanism YG Suliman, N Madzlan, I Kamaruddin, JA Olufemi Applied Mechanics and Materials 567, 422-427, 2014 | | 2014 |
Ibrahim KamaruddinAssociate Professor of Civil Engineering Universiti Teknologi PETRONASCorreu electrònic verificat a petronas.com.my