1. Wagner JG. Fundamentals of Clinical Pharmacokinetics. Hamilton, Illinois: Drug Intelligence Publications; Ist Ed. 1975-IInd Ed. 1979.
2. Gibaldi M, Perrier D. Drugs and the Pharmaceutical Sciences, Vol. 15, Pharmacokinetics, 2nd ed. New York: Marcel Dekker; 1982.
3. Schaefer H, Zech A, Stuttgen G. Skin Permeability. Berlin: Springer-Verlag; 1982.
4. Jacobs M, Martin GP, Marriot C. Effects of phosphatidylcholine on the topical bioavailability of corticosteroids assessed by the human skin blanching assay. J Pharm Pharmacol. 1988;40: 829–833.
5. Ritschel WA, Hussain SA. Transdermal absorption and topical bioavailability of coumarin. Methods Find Exp Clin Pharmacol. 1988;10:165–169.