Piched Lertworaruttikul และ Vimolchaya Yanasugondha. (2008) Attitude of Thai teenagers towards Thai classical music (2007). Thammasat University:ม.ป.ท.Piched Lertworaruttikul และ Vimolchaya Yanasugondha. 2008. Attitude of Thai teenagers towards Thai classical music (2007). ม.ป.ท.:Thammasat University;Piched Lertworaruttikul และ Vimolchaya Yanasugondha. Attitude of Thai teenagers towards Thai classical music (2007). ม.ป.ท.:Thammasat University, 2008. Print.