Pannipa Teerajindachol. 2003. A validation study of solid-phase extraction using disk method for an analysis of organochlorine pesticides in surface water. Field of Study Environmental Technology, Mahidol University;

Pannipa Teerajindachol. A validation study of solid-phase extraction using disk method for an analysis of organochlorine pesticides in surface water. . Bangkok:Mahidol University, 2003.

Pannipa Teerajindachol. (2003) A validation study of solid-phase extraction using disk method for an analysis of organochlorine pesticides in surface water . Mahidol University/Bangkok.