(3JGQjN GdcJGH (B: (3GdbSe GdGhd (B((3YGde GdeYQaI (B169) / s - (3eMeO e(B. (3GdGQfGDhWs; (3SJjHJTajJT, GdcSfOQs ([S.N] : (3GdeLdS GdhWfi ddKbGaI hGdafhf hGdGOGH , s, 1993)
Keywords: (3GdMVGQIs; (3GdWHGYIs; (3GdcJHs; (3GdecJHGJs