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2. Aziz, H.A., 1992. A study on the Removal of Manganese from Water in the Presence of Coarse Media. PhD thesis, University of Strathclyde, Glasgow (unpublished).
3. Heavy metals removal from water and wastewater using limestone filtration technique—a potential use for small and medium industries;Aziz;Journal Institution of Engineers Malaysia (IEM) December,1997
4. Potential use of low cost filtration technique for removing selected heavy metals from wastewater at pH less than 5;Aziz;Indian Journal of Engineering and Material Sciences,1998
5. Removal of manganese from water using crushed dolomite filtration technique;Aziz;Water Research,1996