1) S. Loeb and S. Sourirajan, Adv. Chem. Ser., 38,117 (1963).
2) M. Cheryan, Ultrafiltration Handbook, Technomic publishinhg Co., (1986).
3) C. M. Mohr, D. E. Engelgau, S. A. Leeper, and B. L. Charboneau, Membrane Applications and research in Food Processing. Noyes Data Corporation, (1989).