Edaphic influences on the nutrient concentrations and antioxidant activity of different tea clones (Camellia sinensis (O.) Kuntze) grown at the lowland tea plantation, Bukit Cheedi... by S. S., Amirah, M., Khairil, W. E, Murdiono, Halmi, M. I. E., R., N. Amalina, Yong, J. W. H., Burslem, D. F. R. P.