Steyn, L., and J.N. Maina. “Comparing the Numbers of Four Bird Species, House Sparrow, Cape Glossy Starling, Laughing Doves and Cape Turtle Dove in Gauteng and Limpopo”. Suid-Afrikaans Tydskrif vir Natuurwetenskap en Tegnologie / <i>South African Journal of Science and Technology</i&gt; 33, no. 1 (October 7, 2014): 1 bladsy. Accessed April 28, 2024. http://satnt.co.za/index.php/satnt/article/view/552.