(3GMGOjK Gdi GdTHGH (B/s - (3SdGeI ehSis ((3GdbGgQI (B: s (3SdGeI ehSi ddfTQ hGdJhRjY,s, 1957)
Keywords: (3GdKbGaI GdGSdGejIs; (3GdGSdGe hGdGUdGM GdOjfis