Q. Mushtaq and A. Bano
Embedding of an AG^**-groupoid in a commutative monoid

In this paper we have proved that if an AG^**-groupoid contains a left cancellative AG^**-subgroupoid then it can be embedded in a commutative monoid whose cancellative elements form a commutative group and the identity of this group coincides with the identity of the commutative monoid.