Ngene, Shadrack, Elephus Bitok, Joseph Mukeka, Francis Gakuya, Patrick Omondi, Kennedy Kimitei, Yusuf Watol, Linus Kariuki, and Benson Okita-Ouma. “Census and Ear-Notching of Black Rhinos (Diceros Bicornis Michaeli) in Tsavo East National Park, Kenya”. Pachyderm 49 (June 30, 2011): 61-69. Accessed August 19, 2022. https://pachydermjournal.org/index.php/pachyderm/article/view/251.