(3GdMb ai UjGfI GdYQV ai GdTQjYI GdESdGejI hbGfhf GdYbhHGJ GdeUQi(B/s - (3eMehO fLjH MSfis ((3GdbGgQI (B:s [(3GdfGTQ ZjQ eMOO(B],s, 1984)
(3GdfU HGddZI GdYQHjIs
Keywords: (3bGfhf LfGFi s; (3GdLQGFe GdeGSI HGdYQVs