(3eDGeQI GdZQH Ydi GdYQH(B: (3eMWGJ ai eQGMd GdeDGeQI hebGheJgG (B/ s - (3jGSjf ShjOs ([S.N] : (3GdeQcR GdYQHi ddGHMGK hGdJhKjb , s, 1992)
Keywords: (3GdfRGY GdYQHi GdGSQGFjdis; (3GdSjGSIs; (3GdbVjI GdadSWjfjIs