(3GdTNUjI GdYQHjI Hjf UhQI GdPGJ heaghe GdGNQ (B/ s - (3GdSjO jSjfs ([S.N] : (3ecJHI eOHhdi , s, 1993)
Keywords: (3GdfRGY GdYQHi GdGSQGFjdis; (3GdSjGSIs; (3GdSjGSI GdGLJeGYjIs