1. Clarke’s Analysis of drugs and poisons;Moffat,2004
2. Martindale: The complete drug reference;Sweetman,2009
3. U. S. Pharmacopeia 34 National Formulary 29. Asian ed; 2011.
4. B. Pharmacopoeia, The stationary Office, London; 2012.
5. Gas chromatographic determination of pentoxifylline and its major metabolites in human breast milk;Bauza;J. Chromatogr. B Biomed. Sci. Appl.,1984