(3efGgL GdHMK aj Yde GdfaS (B: (3OQGSI aj WQb JUeje GdHMhK GdfaSjI eY OQGSI MbdjI ebGQfIs - (3YjShj , YHOGdQMef eMeO(B, s; (3YjShj , YHOGdQMef eMeOs ((3efTCI GdeYGQa HGdGScfOQjIs, 1980)
2