The purposes of this research were to study and to compare the addition of ethics to Thai teaching using Thai songs and Dhama lessons. The samples chosen by purposive sampling were the first year English for International Communication students of the faculty of Liberal Arts Rajamangala University of Technology Phra Nakhon. They were divided into 2 groups and each group consisted of 30 students. The first group learned Thai with the addition of ethics using Thai songs while the second group learned Thai using Dhama lessons. The instruments were a pretest and a posttest. The results revealed that the test scores of the two groups of students after the addition of ethics to Thai teaching using Thai songs and Dhama lessons were higher. The means scores and standard deviations of the test results of the first group were23.13 and 3.18 and the second group were 22.23 and 3.49 respectively. In addition there was no significant difference (.05) in teaching Thai with the addition of ethics using Thai songs and Dhama lessons.

This research article aimed to investigate the Gharavasa-dhamma IV which appeared in the royal guidance of His Majesty King Bhumibol Adulyadej the Great. The sample was The Royal Guidance of His Majesty King Bhumibol Adulyadej the Great about religion and morality book of the Department of Religious Affairs (Ministry of Culture 2009). Gharavasa-dhamma IV principle in Buddhism which was defined in Dictionary of Buddhism by Phra Bhramagunabhorn (P.A. Payutto) (2015) was the conceptual analysis framework. The study is based on the documentary research and presented through analytical description. The study found that the royal guidance of His Majesty King Bhumibol Adulyadej the Great can be classified into 3 groups: civil servant youth and Buddhist association with the young Buddhists association. according to the royal guidance literally conformed Gharavasa-dhamma IV was found a total of 21 words of Sacca [truth and honest] 22 words of Dama [taming and training oneself] 15 words of Khanti [tolerance ; forbearance] and 21 words of Caga [generosity]. However in some Royal Guidance there were more than one characteristic as well of Gharavasa-dhamma IV. The royal Guidance therefore has aimed on people to know how to be a good citizen in society for the benefit of People in nation and for their happiness.