1. [2]. Hardman, J. G.; Limbird, L. E. (eds). Goodman & Gilman's: The Pharmacological Basis of Therapeutics, 9th ed., McGraw- Hill, New York, 1996.
2. [3]. USP DI, 24th edition, Drug Information for the Health Care Professional, 2004.
3. [4]. Sweetman, S. C. (ed). Martindale: The complete drug reference, 35th ed., Pharmaceutical Press, London, 2002, p. 392.
4. Simultaneous determination of hydrocortisone, oxytetracycline and nystatin by liquid chromatography
5. [6]. Waksman, S. A. Neomycin. Nature, Formation, Isolation, and Practical Application, Rutgers University Press, New Brunswick, NJ, 1953.