Author/Authors :
Iqbal, Sajid Department of Mathematics - University of Sargodha - Sub-Campus Bhakkar - Bhakkar, Pakistan , Jibril Shahab Sahir, Muhammad Department of Mathematics - University of Sargodha - Sub-Campus Bhakkar - Bhakkar, Pakistan , Samraiz, Muhamamd Department of Mathematics - University of Sargodha - Sargodha, Pakistan