©2013 National Research Council of Thailand
Sanga Wangkaom. 2005. Solid waste management of Tambol Administration Organizations case study : Nongmuangkai district, Phrai province. Field of Study Technology of Environmental Management, Mahidol University;
Sanga Wangkaom. (2005) Solid waste management of Tambol Administration Organizations case study : Nongmuangkai district, Phrai province . Mahidol University/Bangkok.
Sanga Wangkaom. Solid waste management of Tambol Administration Organizations case study : Nongmuangkai district, Phrai province. . Bangkok:Mahidol University, 2005.
Sanga Wangkaom. (2005) Solid waste management of Tambol Administration Organizations case study : Nongmuangkai district, Phrai province . Mahidol University/Bangkok.