(3OQGSGJ aj GdbGfhf GdOhdj (B/s (3GdeLdO GdKGdK(B,s (3GdCee GdeJMOI hMaX GdSdGe aj GdTQb GdChSW (B/s - (3GdLeYjI GdeUQjI ddbGfhf GdOhdjs ((3GdbGgQI (B:s (3GdLeYjI GdeUQjI ddbGfhf GdOhdj(B,s, 1971)
(3jTJed Ydj GQLGYGJ HHdjhLQGajIs
(3GdfU CZdHg HGddZI GdYQHjI HYV GdfUhU GdEfLdjRjI hGdaQfSjIs
Keywords: (3GdCee GdeJMOIs; (3bGfhf Ohdj YGes