Solanki, G. S., and Z. Zothansiama. “Male Homosexual Behavior Among Different Age Groups in Captive Stump-Tailed Macaque (Macaca arctoides): Socio-Sexual or Sexually Motivated?”. International Multidisciplinary Research Journal, vol. 2, no. 2, Mar. 2012, https://updatepublishing.com/journal/index.php/imrj/article/view/1551.