Mootnick, A.; Groves, C. P. (2005). "A new generic name for the hoolock gibbon (Hylobatidae)" (PDF). International Journal of Primatology. 26 (4): 971–976. doi:10.1007/s10764-005-5332-4. S2CID 8394136. Archived from the original (PDF) on 2011-09-27. https://web.archive.org/web/20110927140841/http://www.gibboncenter.org/publications/Hoolock%20Generic%20Name.pdf
Mootnick, A.; Groves, C. P. (2005). "A new generic name for the hoolock gibbon (Hylobatidae)" (PDF). International Journal of Primatology. 26 (4): 971–976. doi:10.1007/s10764-005-5332-4. S2CID 8394136. Archived from the original (PDF) on 2011-09-27. https://web.archive.org/web/20110927140841/http://www.gibboncenter.org/publications/Hoolock%20Generic%20Name.pdf