1. Liquid chromatographic–mass spectrometric methods for analyzing antibiotic and antibacterial agents in animal food products
2. A validated HPLC method for determining residues of a dual active ingredient anti-malarial drug on manufacturing equipment surfaces
3. Commission of the European Communities, Official Journal of the European Communities, Commission Regulation (EC) No. 508/1999 of 4 March 1999, L60/16.
4. Milk Safety References, National Conference on Interstate Milk Shipments (NCIMS), 27 September 2005, Frankfort, KY, USA.
5. Establishment of maximum residue levels of veterinary medical products in foodstuffs of animal origin, Thailand Ministry of Public Health, Bangkok, Thailand, Regulation No. 231, 22 August 2001.