Hughes, Jennifer B; Round, Philip D; Woodruff, David S (2003). "The Indochinese-Sundaic faunal transition at the Isthmus of Kra: An analysis of resident forest bird species distributions". Journal of Biogeography. 30 (4): 569–80. doi:10.1046/j.1365-2699.2003.00847.x.Hughes, Jennifer B; Round, Philip D; Woodruff, David S (2003). "The Indochinese-Sundaic faunal transition at the Isthmus of Kra: An analysis of resident forest bird species distributions". Journal of Biogeography. 30 (4): 569–80. doi:10.1046/j.1365-2699.2003.00847.x. S2CID55953315.
Hughes, Jennifer B; Round, Philip D; Woodruff, David S (2003). "The Indochinese-Sundaic faunal transition at the Isthmus of Kra: An analysis of resident forest bird species distributions". Journal of Biogeography. 30 (4): 569–80. doi:10.1046/j.1365-2699.2003.00847.x.Hughes, Jennifer B; Round, Philip D; Woodruff, David S (2003). "The Indochinese-Sundaic faunal transition at the Isthmus of Kra: An analysis of resident forest bird species distributions". Journal of Biogeography. 30 (4): 569–80. doi:10.1046/j.1365-2699.2003.00847.x. S2CID55953315.