(3Mbhb GdGfSGf(B: s (3OQGSI aj GaQjbjG (B/ s - (3GdbjSj, fhGQ YHOGdhgGHs; (3gGOj, QjGV YRjRs; (3LGeYI HZOGO (B. s (3cdjI GdbGfhf hGdSjGSI (B. s (3bSe GdYdhe GdSjGSjI s (1989)
(3GdfU HGddZI GdYQHjI ; GdeSJNdU HGddZI GdYQHjI hGdGfcdjRjIs
Keywords: (3Mbhb GdGfSGfs