Yǣm... yim čhāk čhai
By: Čhurairat Wannasiri, bannāthikān
Edition: Phim rūam lēm khrang rǣk.
Publisher: Sūn Phatthanā Sitthi Dek læ Sattrī, Mahāwitthayālai Rātchaphat Chīang Rāi
Published: 2007
Place of publication: Chīang Rai
Language: tha
Number of pages: 190
ISBN-13: 9789749972878
Description: Social skills and mind development for ways to live a good and happy life in society.
Notes: "Rūam ngān khīan khatsan čhāk Sān Happy Smile "Happy Smile makes you happy mind" Mahāwitthayālai Rātchaphat Chīang Rāi : Phō̜. Sō̜. 2550."

In Thai.