- British Pharmacopoeia , (1988) ,vol. 2 , pp A137-A138 , HMSO, London.
- Kernik,K.; Reineccius,G.A. and Scire,J.P. 1985. An evaluation of methods for the analysis of encapsulated flawors in progress in flavour Research , 1984 , ed. J.Adda. Amsterdam :Elsevier .
- Anandarman ,S. and Reineccius,G.A. 1987. Analysis of encapsulated organge peel oil . Perf.Flav. 12(2):33-39.
- A.O.A.C. 30.020 – 30.027.
- Miquel,J.D.; Richard,H.M.J.; and Sandret,F.G. 1976. Volatile constituents of Moroccan Thyme Oil . , J.Agric. Food Chem.,Vol.24,No. 4,pp. 833-835.
- El- Tantawy, M.E.; F.S. El-Sakhawy,; M.A. El-Sohly, and S.A. Ross,. 1999. “Chemical composition and biological activity of the essential oil of the fruit of Taxodium distichum L. Rich growing in Egypt”., J.Essent. Oil Res., vol. 11, No. 3, 386-392. Sandra, P. ; Bicchi,C. 1987. Chromatographic method, capillary gas Chromatography in essential oil analysis .,Chapter 8, Retention indices in essential oil analysis, p.259-274.
- Davies ,N.W. 1998. Gas Chromatographic retention index of monoterpenes and quiterpenes on methyl and carbowax 20 M phases ., J.Chromatography, 503, 1-24.
- Kusmenoglu,S. ; Baser,K.H.C. and Ozek,T. 1995 . Constituents of the essential oil from the hulls of Pistacia vera L. , J.Essent. Oil Res. ,7,441-442.
- Bauer,K. ; Garbe,D.;Surburg,H. 1990. Common Fragrance and Flavor Materials . Pub. VCH-Germany.
- Kaiser,G.L. 1976 . SCM crop., US 4000 207 .
- Dictionary of Natural products , 1994 .vol. 4,pp.4685, Published by Chapman & Hall.