Pattaravadee Pongraveevongsa. (1992) Investigation of hippuric acid in vapour exposure by high-performance liquid chromatography and colorimetry. Mahidol University,:ม.ป.ท.Pattaravadee Pongraveevongsa. 1992. Investigation of hippuric acid in vapour exposure by high-performance liquid chromatography and colorimetry. ม.ป.ท.:Mahidol University,;Pattaravadee Pongraveevongsa. Investigation of hippuric acid in vapour exposure by high-performance liquid chromatography and colorimetry. ม.ป.ท.:Mahidol University, 1992. Print.