Nowak, R.M. (1991) Walker's Mammals of the World.The Johns Hopkins University Press, Baltimore and London.
Irwin, M.T. (2008) Feeding ecology of Propithecus diadema in forest fragments and continuous forest. International Journal of Primatology, 29: 95 - 115.
Irwin, M.T., Raharison, F.J., Rakotoarimanana, H., Razanadrakoto, E., Ranaivoson, E., Rakotofanala, J. and Randrianarimanana, C. (2007) Diademed sifakas (Propithecus diadema) use olfaction to forage for the inflorescence of subterranean parasitic plants (Balanophoraceae: Langsdorffia sp., and cytinaceae: Cytinus sp.). American Journal of Primatology, 69: 471 - 476.
Mittermeier, R.A., Konstant, W.R., Nicoll, M.E. and Landgrand, O. (1992) Lemurs of Madagascar: An Action Plan for their Conservation 1993-1999.IUCN, Gland.