ARIFIN Abdu. (2005). Effects of sewage sludge on tree growth, soil properties and groundwater quality. Universiti Putra Malaysia.
Chicago Style (17th ed.) CitationARIFIN Abdu. Effects of Sewage Sludge on Tree Growth, Soil Properties and Groundwater Quality. Selangor: Universiti Putra Malaysia, 2005.
MLA (9th ed.) CitationARIFIN Abdu. Effects of Sewage Sludge on Tree Growth, Soil Properties and Groundwater Quality. Universiti Putra Malaysia, 2005.
Warning: These citations may not always be 100% accurate.