M. Mohizah, S. Julia and W. K. Soh (2006). A Sarawak Gazetteer(PDF). Kuala Lumpur: Sarawak Forestry Department Malaysia and Forest Research Institute Malaysia. ISBN983-2181-86-0. OCLC85818866. Archived from the original(PDF) on 22 July 2011. Retrieved 1 January 2011.
M. Mohizah, S. Julia and W. K. Soh (2006). A Sarawak Gazetteer(PDF). Kuala Lumpur: Sarawak Forestry Department Malaysia and Forest Research Institute Malaysia. ISBN983-2181-86-0. OCLC85818866. Archived from the original(PDF) on 22 July 2011. Retrieved 1 January 2011.
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M. Mohizah, S. Julia and W. K. Soh (2006). A Sarawak Gazetteer(PDF). Kuala Lumpur: Sarawak Forestry Department Malaysia and Forest Research Institute Malaysia. ISBN983-2181-86-0. OCLC85818866. Archived from the original(PDF) on 22 July 2011. Retrieved 1 January 2011.