TY  - SER
AU  - Aishan, Ramadan Mohamed
AU  - Shamshuddin, Jusop
AU  - Fauziah, Che Ishak
AU  - Arifin, Abdu
TI  - Adsorption-Desorption Characteristics of Zinc and Copper in Oxisol and Ultisol Amended with  Sewage Sludge
KW  - Adsorption-Desorption Measurement
KW  - Zinc
KW  - Copper
ER  -