(3OQGSGJ ai GdJGQjN GdGfOdSi (B((3OhdI Hfi HQRGd ai bQehfI(B) 404 - 459 (3g` (B/ s - (3MeOi YHOGdefYe eMeO MSjfs ([S.N] : (3eDSSI THGH GdLGeYI , s, 1990)
Keywords: (3GdGfOdSs; (3GdJGQjN GdGSdGeis; (3GdJGQjNs; (3aJM GdGfOdSs