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Tenzin, N., Bumrungsri, S. and Satasook, C. 2013. Geographical Variation within the Species Ratufa bicolor (Sparrman, 1778) Inferred from External and Cranial Morphology (Sciuridae: Ratufinae) in Thailand. The Thailand Natural History Museum Journal. 7, 1 (May 2013), 1–10.