1. 1) Astarita, G., D. W. Savage and A. Bishio; Gas Treating with Chemical Solvents, John Wiley & Sons (1983)
2. 2) Bartoo, R. K. and U. C. Corp; Chem. Eng. Prog., Oct., 35–39 (1984)
3. 3) Benson, H. E., J. H. Field and W. P. Hanes; Chem. Eng. Prog., 52, 433–438 (1956)
4. 4) Danckwerts, P. V.; Gas Liquid Reactions, McGraw-Hill (1967)
5. 5) Kagakukogaku Kyokai; Kagakukogaku Benran, p. 58, Maruzen (1988)