(3OQGSGJ ai GdGbJUGO GdSYhOi (B/ s - (3eMeO Ydi QVG GdLGSes; (3eMeO QVG GdLGSes ([S.N] : (3eYgO GdHMhK hGdOQGSGJ GdYQHjI , s, 1977)
Keywords: (3GdGbJUGOs; (3GdSYhOjIs; (3GdHJQhds; (3GdJfejIs