(3GSJGfHhd (B: (3fXQI Ydi GdeGVi (B/ s - (3Gced GdOjf GMSGf GhZdis ((3JQcjG (B: s (3eQcR GdGHMGK ddJGQjN hGdafhf hGdKbGaI , s, 1987)
Keywords: (3Gdafhf GdLejdIs; (3JQcjGs; (3GdLhGfH GdGLJeGYjIs; (3Gdafhfs; (3GSJGfHhds; (3af GdJUhjQs