(3GdTQb GdGhSW (B: s (3cGeH OjajO HYO (B10 (3SfhGJ (B/ s - (3chGfJ, hjdjGe Hs ([S.N] : (3eQcR GdGgQGe ddJQLeI hGdfTQ , s, 1989)
Keywords: (3eUQs; (3GdTQb GdGhSWs; (3GSQGFjds; (3GJaGbjGJ cGeH OjajOs