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♦ ¹C. R. Field (1970) A Study of the Feeding Habits of the Hippopotamus (Hippopotamus amphibius Linn.) in the Queen Elizabeth National Park, Uganda, With Some Management Implications, Zoologica Africana, 5:1, 71-86,
♦ ²Seasonal variation in the diets of Bohor reedbuck, waterbuck and wildebeest in a moist dystrophic savanna in Tanzania, Stephanie Halsdorf, Bettina Gutbrodt, Harry Olde Venterink, Werner Suter, Peter J. Edwards, Doctoral Dissertation, ETH ZURICH, 2011
♦ ³The Diet of the Hippopotamus in Ndumu Game Reserve, Natal, as Determined by Faecal Analysis, J.S.B. Scotcher, D.R.M. Stewart, C.M. Breen, S.-Afr. Tydskr. Natuurnavors. 8:1-11 (1978)
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