(3WQb JYdje GddZI GdYQHjI(B, (3W(B1 / s - (3eMeO YHOGdbGOQ GMeO YWGs ([S.N] : (3GdfgVg GdeUQjI , s, 1979)
Keywords: (3GddZI GdYQHjIs; (3JYdje hJOQjSs