Prajak Monjamlang. 2009. Relationship between the environmental awareness and environmentally friendly behavior : a study of solid wastes management of the Department of Environmental Quality Promotion. Bangkok:Thammasat University; DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.res.2009.34

Prajak Monjamlang. Relationship between the environmental awareness and environmentally friendly behavior : a study of solid wastes management of the Department of Environmental Quality Promotion. Bangkok:Thammasat University, 2009. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.res.2009.34

Prajak Monjamlang. (2009) Relationship between the environmental awareness and environmentally friendly behavior : a study of solid wastes management of the Department of Environmental Quality Promotion (รายงานผลงานวิจัย). Thammasat University:Bangkok. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.res.2009.34