(3GdcejGJ hGdehGUaGJ heYOdGJ dGOGA dGYeGd GdHfGA W(B3 (3L(B2 / s - (3eMeO eGLO YHGS NdhUis ([S.N] : (3dLfI GdGYdGe hGdOQGSGJ GdeSJbHdjI , s, 1991)
Keywords: (3GdGYeGd GdGfTGFjIs; (3GdeHGfis