(3JGQjN GYdGf Mbhb GdGfSGf (B/ s - (3eMeO efOhQs; (3HGHjI, GdHjQs ((3GdbGgQI (B: s (3dLfI GdJCdja hGdJQLeI hGdfTQ , s, 1950)
Keywords: (3GdMbhb GdSjGSjIs; (3Mbhb GdGfSGfs; (3GdYdhe GdSjGSjIs