A guide to the design of traffic signals, Cawangan Jalan,Jabatan Kerja Raya 

 - Kuala Lumpur, Jabatan Kerja Raya, 1987 
 - 1v. (various pagings) 
 - Arahan teknik (jalan); 13/87 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Traffic signs and signals - Malaysia