By Teklewold Adefris   Wakjira Adugna   in SINET: Ethiopian Journal of Science

ISSN:0379-2897|27|1|25-32

Faculty of Science, Addis Ababa, Ethiopia‎(2004)‎

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By Wakjira Adugna   Viljoen C.D.   Labuschagne M.T.   in SINET: Ethiopian Journal of Science

ISSN:0379-2897|28|1|41-50

Faculty of Science, Addis Ababa, Ethiopia‎(2005)‎

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