(3GdGTJQGcjI hGdGNdGb (B/ s - (3dWjaI eUWai SdGeI (B((3eJQLe(B)s; (3QHjd, QhLjgs; (3QhfLjQ, HjQjJs ([S.N] : (3ecJHI GdfgVI GdeUQjI , s, 1980)
Keywords: (3GdGTJQGcjIs; (3GdSjGSIs