1. Adrus, M., Mohd Azhar, M. I., Ramji, M. F. S., Mat Daud, M. H. R., Amran, M. F., Mat Yasin, S., & Abdullah, M. T. (2013). Rapid assessment of vertebrate fauna in Gunung Ledang National Park Johor. In A. A. Tuen, M. Jayasilan, & J. Grinang (Eds.), Rimba 3 sustaining livelihood through prudent utilization and management of nature resources (pp. 116–122). Kota Samarahan: Universiti Malaysia Sarawak.
2. Bhattacharya, H., Cirillo, J., Subba, B. R., & Todt, D. (2007). Song performance rules in the oriental magpie robin. Our Nature, 5, 1–13.
3. Burnham, K. P., Anderson, D. R., & Laake, J. L. (1980). Estimation of density from line transect sampling of biological population. The Wildlife Society, 72, 3–202.
4. Craig, R. (2000). A field guide to the birds of Southeast Asia. London: New Holland Publishers (UK) Ltd.
5. Davison, G. W. H., & Chew, Y. F. (1996). A photographic guide to birds of Borneo, Sabah, Sarawak, Brunei and Kalimantan. London: New Holland Publishers (UK) Ltd.