The researchers applied the cluster random sampling technique to identify the sample groups by geographical areas and types of the tertiary educational institutes. Suranaree University of Technology was determined as the core sample of trimester, while the other samples, representing semester system samples, consisted of Kasetsart University, King Mongkut’s Insitiute of Techology Ladkrabang, Chiang Mai University, Mae Faluang University, Nareseun University, Khon Kaen University, Prince of Songkla’s University in Had Yai and Pattani campuses, Walailak University. Three case studies consisting of Rangsit University, Lamphun Technical College, and Chiang Rai Kanjanapisek Technical College were also identified