1. Handbook of Chemical Microscopy;CHAMOT,1958
2. ‘A Comparative Study of Methods for Particle-size Analysis in the Sub-sieve Range’;FISCHMEISTER;Powder Metall,1961
3. British Standards, methods for the determination of particle size of powders, optical microscope method; B.S. 3406: part 4, 1963; B.S. 3625: 1963
4. ‘Calculation of Air Bubble Size Distribution from Results of a Rosiwal Traverse of Aerated Concrete’;LORD;Bull. Am. Soc. Test. Mater,1951
5. ‘The Chord Section Method’;MÜNZER;Heidelb. Beitr. Miner. Petrogr,1953