Tan, D. N. K. (1979). Lupar Valley, West Sarawak, Malaysia Explanation Sheets 1-111-14, 1-111-15 and 1-111-16. Geological Survey of Malaysia Report. 13: 1-159.
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Tan, D. N. K.
1979
Lupar Valley, West Sarawak, Malaysia Explanation Sheets 1-111-14, 1-111-15 and 1-111-16