(3OhQ GdYdhe GdGLJeGYjI GdJWHjbjI aj JQTjO GdSjGSGJ GdCefjI aj GdhWf GdYQHj (B: (3CHMGK GdfOhI GdYdejI GdQGHYI YTQI hGdJj YbOJ HebQ GdeQcR aj GdaJQI ef (B21-23 (3UaQ (B1406 (3g` GdehGab (B4-6 (3fhaeHQ (B1985 /s - (3GdfOhI GdYdejI Mhd OhQ GdYdhe GdGLJeGYjI GdJWHjbjI aj JQTjO GdSjGSGJ GdCefjI aj GdhWf GdYQHjs 1406 (3g`(B. :s (3GdQjGV(B)s ((3GdQjGV (B:s (3GdeQcR GdYQHj ddOQGSGJ GdCefjI hGdJOQjH,s, 1990)
Keywords: (3GdCef GdOGNdjs -- (3GdHdGO GdYQHjIs -- (3eDJeQGJs; (3Yde GdGLJeGY GdLfGFjs -- (3GdHdGO GdYQHjIs -- (3eDJeQGJs