(3GdCMcGe GdYGeI ddVQjHI (B:s (3eMGVQGJ GdbjJ Ydi WdHI OHdhe GdOQGSGJ GdYdjG ai GdJTQjY GdVQjHi (B/s - (3ceGd GdLQa s ((3GdbGgQI (B:s (3cdjI GdMbhb (B- (3LGeYI GdbGgQI (B,s, 1967)
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdeGdjI GdYGeI h GdJTQjY GdVQjHi s; (3GdVQGFH s