“…Several authors utilized the concept of gos in their studies. References may be made to Kamps and Gather [2], Keseling [3], Cramer and Kamps [4], Ahsanullah [5], Habibullah and Ahsanullah [6], Raqab [7], Kamps and Cramer [8], Ahmad and Fawzy [9], Beiniek and Syznal [10], Al-Hussaini and Ahmad [11] , Cramer et al [12], Khan and Alzaid [13], Jaheen [14], Khan et al ([15], [16]), Khan and Zia [17] among others.…”