Suphawat Kaewkhat. 1980. Application of highway design and maintenance standards model (HDM) to the Tha Maduk-Sri Thep Provincial Road. Department of Civil Engineering, Chulalongkorn University;
Suphawat Kaewkhat. (1980) Application of highway design and maintenance standards model (HDM) to the Tha Maduk-Sri Thep Provincial Road . Chulalongkorn University/Bangkok.
Suphawat Kaewkhat. Application of highway design and maintenance standards model (HDM) to the Tha Maduk-Sri Thep Provincial Road. . Bangkok:Chulalongkorn University, 1980.
Suphawat Kaewkhat. (1980) Application of highway design and maintenance standards model (HDM) to the Tha Maduk-Sri Thep Provincial Road . Chulalongkorn University/Bangkok.