Some Special Elements in Ordered ${\Gamma}-semigroups$

References

1. Math. Japonica v.34 On weakly prime, weakly semiprime, prime ideal elements in poesemigroups Kehayopulu, N.
2. Proceedings of the Interantional Conference on Algebra and it's applications On ${\Gamma}$-semigroups Sen, M.K.
3. Bull. Cal. Math. Soc. v.78 On ${\Gamma}$-semigroup I Sen, M.K.;Saha, N.K.