(3GdJcGdja ai GdefTGJ GdUfGYjI (B/ s - (3GMeO fhQs; (3GdSjO YHOGdebUhO OHjGfs ([S.N] : (3eDSSI THGH GdLGeYI , s, 1989)
Keywords: (3eMGSHI GdJcGdjas; (3GdeMGSHI GdGOGQjIs; (3GdJcGdja GdUfGYjIs