1. Freeman, H.M. (1988) Standard handbook of hazardous waste treatment and disposal. McGraw-Hill, New York.
2. Miller, J.D. and Kinneberg, D.J. (1984) International Conference on Recent Advances in Mineral Science and Technology, pp. 337-338. Johannesburg.
3. Miller, J.D., Lelinski, D. and Parga, J.R. (1996), Final report-CX 823711, Advance Process Technology for the Wastepaper Recycling Plants and Pulp/Paper Plants. Southwest Centre for Environmental Research and Policy.