(3SjchdhLjI GdJYUH (B/ s - (3Ndjd GMeO Ndjds; (3gGjfGd(B, (3GfOQjIs; (3ehdfGQ(B, (3ejchSs; (3Oi HhejM, LjQGOs ([S.N] : (3OGQ GdSGbi , s, 1990)
Keywords: (3GdJMdjd GdfaSis; (3Yde GdfaS GdGLJeGYis; (3GdYOhGfjIs