Annual report / 
Sibu Water Board, Sarawak. 
 - Kuching :  Government Printing Office,  [n.d.]. 
 - Annually. 
<br/><br/> Kepunyaan perpustakaan : 1974, 1975. 
<br/><br/><label>Subjects--Corporate Names: </label><br/>Sibu Water Board, Sarawak--Periodicals.