AYIK, H. Et Al. 2000. The Semigroup Efficiency of Groups and Monoids. Proceedings of the Royal Irish Academy A , vol.100 , 171-176.

AYIK, H., Ruskuc, N., Campbell, C. M., & O'Connor, J. J., (2000). The Semigroup Efficiency of Groups and Monoids. Proceedings of the Royal Irish Academy A , vol.100, 171-176.

AYIK, HAYRULLAH Et Al. "The Semigroup Efficiency of Groups and Monoids," Proceedings of the Royal Irish Academy A , vol.100, 171-176, 2000

AYIK, HAYRULLAH Et Al. "The Semigroup Efficiency of Groups and Monoids." Proceedings of the Royal Irish Academy A , vol.100, pp.171-176, 2000

AYIK, H. Et Al. (2000) . "The Semigroup Efficiency of Groups and Monoids." Proceedings of the Royal Irish Academy A , vol.100, pp.171-176.

@article{article, author={HAYRULLAH AYIK Et Al. }, title={The Semigroup Efficiency of Groups and Monoids}, journal={Proceedings of the Royal Irish Academy A}, year=2000, pages={171-176} }