(3bUI GdGVWgGO GdOjfi ai GdeSjMjI hGdGSdGe (B/ s - (3Jhajb GdWhjds ([S.N] : (3GdRgQGA ddGYdGe GdYQHi , s, 1991)
Keywords: (3GdadSaI GdGSdGejIs; (3GdGSdGes; (3GdGSdGe hGdeSjMjIs