(3GdGZPjI GdJbdjOjI ai GdTQb GdGOfi (B/ s - (3Thbi OGZQs ([S.N] : (3efXeI GdGZPjI hGdRQGYI ddCee GdeJMOI , s, 1990)
Keywords: (3GdTQb GdGOfis; (3GdWgis