1. ANON. 1929 . International Critical Tables of Numerical Data, Physics, Chemistry and Technology , Vol. II , p.327 , McGraw-Hill, New York.
2. ANON. 1977 . Orion's Instruction Manual for Halide Electrodes #94-17, 93-35, 94-53 and 96-17. Form 94H/776. Orion Res. Mass.
3. Effect of Osmotic Agents and Concentration on Fruit Quality