HasanahR., MaulanaV. S., and IskandarE. “Sexual Behaviour of Long-Tailed Macaques (Macaca Fascicularis) in Semi-Natural Captivity, Tinjil Island, Indonesia”. Indonesian Journal of Primatology, Vol. 1, no. 01, 1, pp. 1-9, doi:10.29244/primatology.1.01.1-9.