(3GdehShYI GdYQHjI (B: s (3GdGSdGe ai ehGLgI GdadSaGJ GdbOjeI(B.s (3GdLRA (B11 /s - (3GfhQ GdLfOis ((3GdTQcI GdYGdejI ddcJGH (B:s (3HjQhJ,s, 1978)
Keywords: (3GdYGde GdYQHis; (3GdMVGQI GdGSdGejIs; (3GdadSaI GdGSdGejIs