(3bQjI Hfi fYje(B: (3OQGSI ejOGfjI (B/ s - (3JjSjQ ShQis; (3SdjeGf GdefGUQI(B((3GYOGO(B)s ([S.N] : (3QGHWI GdLGeYjjf(B- (3GdNdjd eQcR GdGHMGK , s, 1987)
Keywords: (3JGQjNs; (3adSWjfs; (3GdLZQGajG GdWHjYjIs; (3GdeOfs; (3GdbQis; (3bQjI Hfi fYjes; (3GdNdjds