Waruiru R M, Mavuti S K, Mbuthia P G and Njagi L W 2018:
Prevalence and intensity of gastrointestinal helminth infestations of free range domestic ducks in Kenya.
Livestock Research for Rural Development. Volume 30, Article #66.
Retrieved
, from http://www.lrrd.org/lrrd30/4/rmwa30066.html