A STUDY ON THE PRACTICES OF PROJECT MANAGEMENT OF THE MIDDLE LEVEL CONTRACTORS  eng. 
Jayasundara, H M S K. 
 - xi, 64p.:  30cm. 
<br/><br/> Wijekoon, W M M G D. & Arumugan, E. 
<br/><br/><label>Gov. Doc. Class. No.: </label>MPM/T/169