(3eLehYI QSGFd haJGhi aj eSGFd egeI JeS dgG MGLI GdYUQs - (3NHQGA eQcR GdNHQGJ GdegfjI ddEOGQI (B((3Hejc(B) $1 (3YHOGdQMef Jhajbs ((3GdSYhOjIs (3GdEYdGe GdSYhOjIs, 1988)
Keywords: (3Gdabg hGdCMcGe GdTQYjIs; (3Gdabg hGdCMcGe GdTQYjIs