Punyawee Arame. 2002. Environmental education management of private vocational schools in Nakhonpathom province. Field of Study Environmental Education, Mahidol University;
Punyawee Arame. (2002) Environmental education management of private vocational schools in Nakhonpathom province . Mahidol University/Bangkok.
Punyawee Arame. Environmental education management of private vocational schools in Nakhonpathom province. . Bangkok:Mahidol University, 2002.
Punyawee Arame. (2002) Environmental education management of private vocational schools in Nakhonpathom province . Mahidol University/Bangkok.