(3GhQhHG hGdGSdGe (B: s (3UOGe GdKbGaI h GdMOGKI (B/ s - (3gTGe LYjWs ((3HjQhJ (B: s (3OGQ GdWdjYI , s, 1980)
Keywords: (3GfJTGQ GdGSdGes; (3GdGSdGe ai GhQhHGs; (3GhQHGs