(3Mhd GdacQI GdYQHjI ai eUQ(B: s (3OQGSI ai JGQjN GdacQ GdSjGSi GdeUQi GdeYGUQ (B/ s - (3aDGO GdeQSi NGWQs; (3jhfGf dHjH QRb s ((3GdbGgQI (B: s (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1985)
Keywords: (3GdYUQ GdMOjKs; (3eUQs; (3JGQjNs; (3GdhMOI GdYQHjIs; (3KhQI (B23 (3jhdjh (B1952s; (3GdbhejI GdYQHjIs