ප්රජා සංවර්ධන ව්යාපෘති
Gajanayake,Jaya
ප්රජා සංවර්ධන ව්යාපෘති = Praja sanwardhana wyapruthi - 2nd Ed.; - Boralla National Association for Community Development and Adult Education, 1990 - 79. ill 24cm
9559089005
Project management
658.404 / GAJ
ප්රජා සංවර්ධන ව්යාපෘති = Praja sanwardhana wyapruthi - 2nd Ed.; - Boralla National Association for Community Development and Adult Education, 1990 - 79. ill 24cm
9559089005
Project management
658.404 / GAJ