1. Patankar, S. V. and D. B. Spalding, Heat and Mass Transfer in Boundary Layers, Intertext Book, 2nd Ed., London, 1970.
2. Michiyoshi, L., K. Mizuno and Y. Hoshinai, Intern. Chem. Eng. 6 (1966) 373.
3. Chen, S. S., L. T. Fan and C. L. Hwang, AIChE J. 16 (1970) 293.
4. Campbell, W. D. and J. C. Slattery, Trans. Am. Soc. Mech. Engrs., J. Basic Eng. 95D (1963) 41.
5. Oldroyd, J. G., Proc. Cambridge Phil. Soc. 43 (1947) 383.