By Assefa E.   Abebe G.   in Veterinary Parasitology

ISSN:0304-4017|99|4|261-271

Elsevier‎(2001)‎

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By Abebe G.   Merkel R.C.   Animut G.   Sahlu T.   Goetsch A.L.   in Small Ruminant Research

ISSN:0921-4488|51|1|37-46

Elsevier‎(2004)‎

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