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Che Fauziah Ishak, . and Siti Zauyah Darus, . and Anuar Abdul Rahim, . and Shamshuddin Jusop, . (1998) Cadmium copper nickel and zinc in soils leaves and beans of cocoa. [Proceedings Paper]
Norhayati A., . and Rosenani Abu Bakar, . and Mubarak A.R., . and Siti Zauyah Darus, . and Anuar Abdul Rahim, . (1998) Decomposition and nutrient release from maize Zea mays L. residue and N uptake by groundnut Arachis hypogen. [Proceedings Paper]
Siti Zauyah Darus, . and Shamshuddin Jusop, . and Fauziah Ishak, . and Van Ranst E., . and Fiantis D., . (1998) Mineralogy and sand surface morphology of some volcanic ash soils from West Sumatra Indonesia. [Proceedings Paper]
Pratummintra S., . and Shamshuddin Jusop, . and Siti Zauyah Darus, . and Ramst. E. Van, . and Verplancke H., . (1998) Water balance study for some rubber soils in East Thailand. [Proceedings Paper]
Boniao R., . and Shamshuddin Jusop, . and Siti Zauyah Darus, . and Syed Omar Syed Rastan, . and Van Ranst E., . (1998) The effects of cultivation on the chemical properties of volcanic soils of Camiguin Island Southern Philippines. [Proceedings Paper]
Teh C.B.S., . and Siti Zauyah Darus, . The effect of oil palm Elaeis guineensis empty fruit bunches on some soil physical properties after ten years of annual application. pp. 27-30. ISSN 0128-9322
