Denis Tan Ngoh Kiat <br/><br/>
Lupar Valley, west Sarawak Malaysia 
by Denis Tan Ngoh Kiat 
 -  1979 
 - xviii, 159 p.  ill.,maps,photos  26 cm+  2 maps 
<br/><br/> Explanation of sheets 1-111-14,1-111-15, and part of 1-111-16 
<br/><br/>Includes bibliographical references 
<br/><br/> The area is drained almost entirely by the Batang Lupar and its tributaries, the main ones being Batang Lemanak, Batang Undup, Sungai Kumpang and Sungai Entulang 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tectonics--Sarawak