Molecular Studies of Gastrointestinal Strongyle Nematodes in Migratory, Resident, and Sedentary Plains Zebras (Equus quagga) in Kenya oleh Linda G.M. Maina, Ndichu Maingi, Chege J. Ng'ang'a, Robert M. Waruiru, Francis Gakuya, Esther G. Kanduma