(3QSGFd GdNjGe GdLHQjI (B/ s - (3QTOi QGTO (B((3eMbb heJQLe(B)s; (3GMeO LHGQs ([S.N] : (3eYgO GdJQGK GdYdei GdYQHi , s, 1981)
Keywords: (3GdLHQs; (3GdYdhe YfO GdYQHs; (3GdMVGQI GdGSdGejIs; (3GdMSGHs; (3GdQjGVjGJ GdYQHjIs