| Issue Date | Title | Author(s) |
| 2012 | Assessment of hydrochemical and isotopic characteristics at matang landfill site using multivariate analysis | Zawawi, M.H. ; Syafalni ; Abustan, I. ; Nazri, M.A.A. |
| 2012 | Authentication relation between surface-groundwater in kerian irrigation canal system, perak using integrated geophysical, water balance and isotope method | Nazri, M.A.A. ; Syafalni ; Abustan, I. ; Rahman, M.T.A. ; Zawawi, M.H. ; Dor, N. |
| 2011 | Detection of groundwater aquifer using resistivity imaging profiling at Beriah Landfill Site, Perak, Malaysia | Zawawi, M.H. ; Syafalni ; Abustan, I. |
| 2018 | Effect of the gap height of radial gate on the volumetric flow rate in dam | Ng, F.C. ; Abas, A. ; Abustan, I. ; Rozainy, Z.M.R. ; Abdullah, M.Z. ; Jamaludin, A.B. ; Kon, S.M. |
| 2014 | Isotopic and hydrochemistry fingerprinting of leachate migration in shallow groundwater at controlled and uncontrolled landfill sites | Syafalni, S. ; Zawawi, M.H. ; Abustan, I. |
| 2012 | Raw water treatment using bentonite-chitosan as a coagulant | Syafalni, S. ; Abustan, I. ; Zakaria, S.N.F. ; Zawawi, M.H. ; Rahim, R.A. |
| 2015 | Relationship between sediment build-up characteristics and antecedent dry days on different urban road surfaces in Malaysia | Chow, M.F. ; Yusop, Z. ; Abustan, I. |