Piched Lertworaruttikul. 2008. Attitude of Thai teenagers towards Thai classical music (2007). Bangkok:Thammasat University; DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.res.2008.50
Piched Lertworaruttikul. (2008) Attitude of Thai teenagers towards Thai classical music (2007) (รายงานผลงานวิจัย). Thammasat University:Bangkok. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.res.2008.50
Piched Lertworaruttikul. Attitude of Thai teenagers towards Thai classical music (2007). Bangkok:Thammasat University, 2008. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.res.2008.50
Piched Lertworaruttikul. (2008) Attitude of Thai teenagers towards Thai classical music (2007) (รายงานผลงานวิจัย). Thammasat University:Bangkok. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.res.2008.50