Jintana Vararussami. (1999) A modified method for determination of hippuric acid and mythylhippuric acid in urine by gas chromatography. Mahidol University,:ม.ป.ท.Jintana Vararussami. 1999. A modified method for determination of hippuric acid and mythylhippuric acid in urine by gas chromatography. ม.ป.ท.:Mahidol University,;Jintana Vararussami. A modified method for determination of hippuric acid and mythylhippuric acid in urine by gas chromatography. ม.ป.ท.:Mahidol University, 1999. Print.