Schooman L, Swai E S and Daborn C J 2011:
Differences in socio-economic demography, herd parameters and hygienic management practices amongst livestock keepers in two contrasting production systems of Tanga region, Tanzania.
Livestock Research for Rural Development. Volume 23, Article #237.
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, from http://www.lrrd.org/lrrd23/11/scho23237.htm