(3GdeJge eYGedJg hMbhbg aj Gdabg GdGSdGej (B/ s - (3GdShjde , HfOQ Hf agO s ((3GdQjGV (B: s (3OGQ GdfTQ HGdeQcR GdYQHj ddOQGSGJ GdGefjI hGdJOQjH , s, 1987)
Keywords: (3GdYbhHGJ (B( (3abg GSdGej (B) s