ASTUTIP., YUSUFT. L., HAYESE., MAHESHWARIH., SJAHFIRDIL. and SAJUTHID. (1) “Diurnal Patterns of Testosterone and Cortisol Metabolites in Fecal of Javan Gibbons (Hylobates moloch) in Captivity”, HAYATI Journal of Biosciences, 13(2), p. 69. doi: 10.4308/hjb.13.2.69.