(3ehShYIGdeUWdMGJ GdafjI ai GdeMGSHI bGehS Jbfi (B/ s - (3GOhGQ YHOGddg eYdhdis ([S.N] : (3OGQ GdQGJH GdLGeYjI , s, 1986)
Keywords: (3WQb GdJOQjSs; (3GdeMGSHIs