1. Barry, B. W., Dermatological formulations; Percutaneous absorption. Marcel Dekker, INC. New York, NY 10016, pp. 127–340 (1983).
2. Chien, Y. W., Transdermal controlled systemic medications. Marcel Dekker, INC, New York, NY 10016, pp 1–21 (1987).
3. Hadgraft, J. Transdermal drug delivery. Marcel Dekker, INC., New York, N. Y. 10016, pp. 59–77 (1989).
4. Henderson, N. L., Meer, P. M. and Kostenbauder, H. B., Approximate rates of shear encountered in some pharmaceutical processes.J. Pharm. Sci., 50, 788 (1961).
5. Kydonieus, A. F. and Berner, B.,Transdermal delivery of drugs. Vol. 1, CRC press, INC. Boca Raton, Florida 33431, pp. 3–16 (1987).