Hiroki Hata และผู้แต่งคนอื่นๆ. (2015) Forest Habitat and Fruit Availability of Hornbills in Salakphra Wildlife Sanctuary, Kanchanaburi Province,Thailand. <i>Environment and Natural Resources Journal</i>, <i>13</i>(1), 13-20.Hiroki Hata และผู้แต่งคนอื่นๆ. "Forest Habitat and Fruit Availability of Hornbills in Salakphra Wildlife Sanctuary, Kanchanaburi Province,Thailand". Environment and Natural Resources Journal 13 (2015):13-20.Hiroki Hata และผู้แต่งคนอื่นๆ. Forest Habitat and Fruit Availability of Hornbills in Salakphra Wildlife Sanctuary, Kanchanaburi Province,Thailand. Faculty of Environment and Resourdce Studies,Mahidol University:ม.ป.ท. 2015.