Machete J B, Nsoso S J, Kgwatalala P M, Moreki J C and Aganga A O 2017:
Phenotypic characterization of Tswana chickens based on quantitative traits in Kweneng and Southern Districts, Botswana.
Livestock Research for Rural Development. Volume 29, Article #132.
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, from http://www.lrrd.org/lrrd29/7/jmsm29132.html