Koh, G. H., & Chye, N. S. (2011). Observation of captive rhinoceros hornbills (Buceros rhinoceros) in Jurong bird park and in 3 Thailand zoos as part of a selection for the re-introduction program of rhinoceros hornbills in Singapore.
استشهاد بنمط شيكاغوKoh, Geraldine Huiping., و Ng Soon Chye. Observation of Captive Rhinoceros Hornbills (Buceros Rhinoceros) in Jurong Bird Park and in 3 Thailand Zoos As Part of a Selection for the Re-introduction Program of Rhinoceros Hornbills in Singapore. 2011.
MLA استشهادKoh, Geraldine Huiping., و Ng Soon Chye. Observation of Captive Rhinoceros Hornbills (Buceros Rhinoceros) in Jurong Bird Park and in 3 Thailand Zoos As Part of a Selection for the Re-introduction Program of Rhinoceros Hornbills in Singapore. 2011.