Otani, Y., Tuuga, A., Bernard, H., & Matsuda, I. (2023). Opportunistic predation and predation-related events on long-tailed macaque and proboscis monkey in Kinabatangan, Sabah, Malaysia. Journal of Tropical Biology & Conservation (JTBC), 9(2). https://doi.org/10.51200/jtbc.v9i2.247