(3WQjbI GdQhGFR aj GdJQHjI (B/ s - (3HhfHhGQ, BfG s; (3CHh aGVd, ejTGd s ((3HjQhJ (B: s (3efThQGJ YhjOGJ,s, 1981)
Keywords: (3Yde GdfaS GdJQHhj s