Chanapa Chandrayu. 2007. Alternatives for improvement of wastewater treatment systems for Mahidol University, Salaya. Field of Study Appropriate Technology for Resources and Environmental Development, Mahidol University;
Chanapa Chandrayu. (2007) Alternatives for improvement of wastewater treatment systems for Mahidol University, Salaya . Mahidol University/Bangkok.
Chanapa Chandrayu. Alternatives for improvement of wastewater treatment systems for Mahidol University, Salaya. . Bangkok:Mahidol University, 2007.
Chanapa Chandrayu. (2007) Alternatives for improvement of wastewater treatment systems for Mahidol University, Salaya . Mahidol University/Bangkok.