1. Model DU-2UV Spectrophotometer, Beckman Instrument Inc. Manual 1964
2. Analytical Systems for Microchemistry II Instrumentation;Parker;J. Clin. Lab. Automat.,1981
3. Computer Aided Chemistry and the Role of Perkin Elmer;Kelly;Instrument News,1981
4. The Electrolyte 2 Analyzer;Ishii;J. Clin. Lab. Automat.,1982