(3GdaGQb Hjf GdeUfa hGdSGQb (B/s - (3GdLdGd GdSjhWj, YHO GdQMef Hf CHj HcQ Hf eMeO,s 849-911 (3gLQjs; (3GdCKQj, Ydj Hf MSf Hf Ydj,s 1960-2020 ((3GdOeGe, GdSYhOjI (B:s (3OGQ GdgLQI ddfTQ hGdJhRjY,s, 1989)
Keywords: (3GdCNdGb GdESdGejIs; (3GdBOGH GdESdGejIs; (3Mbhb GdJCdja hGdfTQ (B((3abg ESdGej(B)s