(3YQGFS GdNjGd (B/ s - (3jhSa aQfSjSs ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddJCdja hGdfTQ , s, 1971)
Keywords: (3GdJeKjds; (3GdQbUs; (3GdGhHQGs; (3GdHGdjIs