R. C. Barnabe, M. A. de B. V. Guimarães, C. A. de Oliveira, and A. H. Barnabe, “Analysis of some normal parameters of the spermiogram of captive capuchin monkeys (Cebus apella Linnaeus, 1758 )”, Braz. J. Vet. Res. Anim. Sci., vol. 39, no. 6, pp. 331–333, Jan. 2002, doi: 10.1590/S1413-95962002000600010.