1. Ultrapurification of Semiconductor Materials;Brooks,1962
2. Ultrapurity;Zief,1972
3. Chemical Thermodynamics;Wall,1974
4. Mineql, A Computer Program for the Calculation of Chemical Equilibrium Composition of Aqueous Systems;Westall,1976
5. Microql, A Chemical Equilibrium Program in Basic;Westall,1979