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2. Textbook of Clinical Chemistry;Blanke,1986
3. Second Derivative Spectrophotometric Determination of p-Aminophenol in the Presence of Paracetamol
4. The European Pharmacopeial Convention, the Sixth Edition European Pharmacopoeia, 2007, p. 0049.
5. The United States Pharmacopeial Convention, USP (The United States Pharmacopoeia) 27-NF (The National Formulary) 22, vol. 27(3), 2004, p. 2494.