On commutativity of one-sided -unital rings.
Page 1
Abujabal, H.A.S., Khan, M.A. (1992)
International Journal of Mathematics and Mathematical Sciences
H. A. S. Abujabal, M. A. Khan, M. S. Khan, Mohammad S. Samman (1993)
Czechoslovak Mathematical Journal
Maurer, I.Gy., Szigeti, J. (1990)
Mathematica Pannonica
A.V. Kelarev (1993)
Semigroup forum
Domokos, M., Popov, A. (1997)
Mathematica Pannonica
Page 1