A Development of an e-Book: English Writing Expressions for Business Communication for the Students at Rajamangala University of Technology Rattanakosin

Abstract

The purpose of this study was to develop an e-book: English Writing Expressions for Business Communication for the Students at Rajamangala University of Technology Rattanakosin. The study was undertaken through an experimental research by using the one-group pretest-posttest design. The purposive sampled group consisted of 31 students who volunteered to participate in this project. The research instruments included an e-book: English Writing Expressions for Business Communication for the Students at Rajamangala University of Technology Rattanakosin and a questionnaire on students’ satisfaction with the developed e-book. The developed e-book contained eleven units of the contents: Unit 1: Invitations, Unit 2: Expressing Thanks, Unit 3: Apologizing, Unit 4: Congratulations, Unit 5: Condolences, Unit 6: Requests/Inquiries, Unit 7: Orders, Unit 8: Complaints, Unit 9: Adjustments, Unit 10: Application, and Unit 11: Collection. The results were as follows: 1) the value of the effectiveness of the developed e-Book was 88.68 /86.23, which was higher than the set criteria of the value of the effectiveness of 80/80, 2) the posttest score was significantly higher than the pretest score at the significant level of .05, and 3) the sampled group expressed their high level satisfaction with the developed e-book.