The purpose of this research is to study the effect of marketing communications on student decision in relation to enrollment for a bachelor degree at Rajamangala University of Technology Phra Naknon and to determine other factors affecting such decision of grade 12 students and year 3 vocational certificate students in Bangkok. The research tool used in this study is a questionnaire to enable analysis through frequency percentage mean standard deviation and Chi-Square Test. The findings show that subjects are influenced in their choice to study by online media (such as websites and Facebook) the public relations media of the university (in the form of newspapers journals and posters) as well as the reputation and image of the university. The results further show with a level of significance at 0.05 that student decision with regard to enrollment in a bachelor degree at Rajamangala University of Technology Phra Naknon depends on viral marketing or word-of-mouth marketing

The objectives of the research were 1) to study the level of Integrated marketing communication social factors and the students’ decision on undergraduate education in Dusit district 2) to compare the demographic characteristics towards the students’ decisionon undergraduate education in Dusit district 3) to investigate the Integrated marketing communication that influenced the students’ decision on undergraduate education in Dusit district and 4) to investigate the social factor that influenced the students’ decision on undergraduate education in Dusit district. A sample was identified by a number of 400 people who are undergraduate students of the universities in Dusit District in year 2558 which are Suan Dusit University Suan Sunandha Rajabhat University and Rajamangala University of Technology Phra Nakhon. Questionnaires were used to collect the data. The statistical methods used to analyze data were frequency percentage mean standard deviation t-test one-way analysis of variance and enter multiple regression analysis. 1) The results indicated the majority of sample group were female students for 68.25 percent. Students lives in Bangkok metropolitan region for 51.75 percent. Parents graduated with Undergraduate degrees for 32.25 percent. Parents run their your own business for 36.50 percent. Family income is 15001 – 30000 baht per month for 47.50 percent. 2) The integrated marketing communication and social factor were prioritized in a high level. The students’ decision on undergraduate education were prioritized in a medium level. 3) Student with different gender domicile educational level of parents occupation of parents and monthly family income showed no differences of students’ decision on undergraduate education in Dusit district. 4) The integrated marketing communication including public relations and direct marketing increased the level of students’ decision on undergraduate education in Dusit district. and 5) The social factor including reference group and family increased the level of students’ decision on undergraduate education in Dusit district