Cheah, E. K. W., & Mohamat Yusuff, F. @. F. (2013). Contamination of trace elements (Cu, Pb, Cr) in Kong Ko Laut, Johor, Malaysia. Springer.
Chicago-čujuhus (17. p.)Cheah, Eddie Kee Wan, juo Ferdius @ Ferdaus Mohamat Yusuff. Contamination of Trace Elements (Cu, Pb, Cr) in Kong Ko Laut, Johor, Malaysia. Springer, 2013.
MLA-čujuhus (9. p.)Cheah, Eddie Kee Wan, juo Ferdius @ Ferdaus Mohamat Yusuff. Contamination of Trace Elements (Cu, Pb, Cr) in Kong Ko Laut, Johor, Malaysia. Springer, 2013.
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