1. U.S. Patents 3 547 868, 3 616 179, 3 684 467 and 4 014 726.
2. G.A. Adam, S. Niema and H.K. Al-Gatta, Iraqi Patent 1650 (1984).
3. G.A. Adam and K.Y. Yousif, Iraqi Patent, No. 1846,1986.
4. Calorimetric investigation of polymerization reactions. III. Curing reaction of epoxides with amines
5. C.H. Greenwalt, U.S. Patent 2 388 138.