Kok, A. and Kok, O. (2002) “Dietary composition of birds species at an inland airport in South Africa”, Suid-Afrikaans Tydskrif vir Natuurwetenskap en Tegnologie / <i>South African Journal of Science and Technology</i&gt;, 21(1), pp. 16-18. doi: 10.4102/satnt.v21i1.222.