1. The ultrastructure of the “prismless” enamel of permanent human teeth
2. Stack, M.V., and Fearnhead, R.W. (eds) : Tooth Enamel, Bristol: John Wright and Sons, Ltd., 1965, pp 161-216.
3. Meckel, A.H.: The Keyhole Concept of Enamel Microstructure, in Dziewiatkowski, D.D. (ed) : Chemistry and Physiology of Enamel, Ann Arbor: University of Michigan Press, 1972, pp 25-42.
4. Sicher, H., and Bhaskar, S.W. (eds) : Or-ban's Histology and Embryology, 7th ed, St. Louis: C.V. Mosby Co., 1972, pp 38-130, 160-181.
5. Swancar, J.R.; Scott, D.B.; Simmelink, J.W.; and Smith, T.J.: The Morphology of Enamel Crystals, in Fearnhead, R.W., and Stack, M.V. (eds) : Tooth Enamel II, Bristol: John Wright and Sons, Ltd., 1971, pp 72-76.