(3JGOjH GYVGA gjFI GdTQWI (B: (3OQGSI JWHjbjI (B/ s - (3LeGd GdOjf SGde MLGRis ([S.N] : (3aDGO gGTe GdcJHi , s, 1988)
Keywords: (3GdbGfhfs; (3GdbGfhf GdYScQis