Laporan tahunan =  annual report 

 - [s.l :  s.n,  n.d.] 
 - Annually 
<br/><br/> PTSL : 1991, 1992, 1997, 1998 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Idris Hydraulic (Malaysia) Berhad--Periodicals