(3GdJgQH GdVQjHi ai GdbGfhf GdeUQi (B: s (3OQGSI ebGQfI (B/ s - (3GMeO eGgQ YHOGdMejO YRs; (3YGWa UObi(B: s; (3LGeYI GdbGgQIs (3cdjI GdMbhbs ((3GdbGgQI (B: s (3cdjI GdMbhb (B- (3LGeYI GdbGgQI ,s, 1980)
(3GWQhMI(B((3OcJhQGg(B) - (3LGeYI GdbGgQI (B- (3cdjI GdMbhb (B- (3bSe GdeGdjI GdYGeI hGdJTQjY GdVQjHi (B1980s
Keywords: (3GdJTQjY GdVQjHjs; (3GdJgQH GdVQjHi s; (3GdJTQjY GdVQjHis; (3CfhGY GdJgQHs; (3WQb ecGaMI GdJgQHs; (3LQGFe GdJfajPs; (3LQGFe GdYhO s; (3JWhQ fXGe GdVQGFHs; (3QSGFd LGeYjI s -- (3LGeYI GdbGgQIs -- (3cdjI GdMbhbs