(3GdMebi hGdeLGfjfs ([S.N] : (3OGQ GdcJGH GddHfGfi , s, 1987)
Keywords: (3GdGOH GdYQHis; (3GdGgGLi hGdacGgGJs; (3GdSNQjI ai GdGOHs; (3GdVMcs