Stephens, M., Roberts, R. G., Lian, O. B. & Yoshida, H. (2007). Progress in optical dating of guano-rich sediments associated with the Deep Skull, West Mouth of the Great Cave of Niah, Sarawak, Borneo. Quaternary Geochronology, 2 330-336.
Stephens, M., Roberts, R. G., Lian, O. B. & Yoshida, H. (2007). Progress in optical dating of guano-rich sediments associated with the Deep Skull, West Mouth of the Great Cave of Niah, Sarawak, Borneo. Quaternary Geochronology, 2 330-336.