Wiraj Akaratatta. 1999. Development of a cost estimation and control system for the construction project planning. Program of Engineering Management, Chulalongkorn University;
Wiraj Akaratatta. (1999) Development of a cost estimation and control system for the construction project planning . Chulalongkorn University/Bangkok.
Wiraj Akaratatta. Development of a cost estimation and control system for the construction project planning. . Bangkok:Chulalongkorn University, 1999.
Wiraj Akaratatta. (1999) Development of a cost estimation and control system for the construction project planning . Chulalongkorn University/Bangkok.