Sattar, Auritro, et al. “Observation of Mating Behaviour in Phayre’s Langur (Trachypithecus Phayrei) in Lawachara National Park, Bangladesh ”. Bangladesh Journal of Zoology, vol. 53, no. 1, June 2025, pp. 125-9, doi:10.3329/bjz.v53i1.82656.