(3GdLeGYI GdSdWI hGdGJUGd (B/ s - (3ghZ, L(B0 (3Hs; (3djajc, Os; (3ehQGf, G(B.s; (3fXQ LGgd (B((3eJQLe(B)s ([S.N] : (3GdeDSSI GdMOjKI ddcJGH , s, 1991)
Keywords: (3GdYdGbGJ GdGfSGfjIs; (3GdSdhcs; (3GdGJUGdGJ GdGOGQjIs