Payne, J. 1990. Transfrontier protected areas in Borneo: (1) Conservation in the Sabah border regions. Report submitted to the WWF Malaysia and the Government of Sabah. pp. 1-35.
Transfrontier protected areas in Borneo: (1) Conservation in the Sabah border regions
Fraser, D.; Gilbert, M.; Rybczynski, N.; Dawson, M.R. 2025. Post-Eocene rhinocerotid dispersal via the North Atlantic. Vertebrate Anatomy, Morphology, Palaeontology 13 (Canadian Society of Vertebrate Palaeontology 2025 Abstracts): 21.