(3GdHDSGA (B/ s - (3gjLh ,acJhQ s; (3RZjH , gfQj s ((3HZOGO (B: s (3hRGQI GdKbGaI hGdGYdGe OGQ KbGaI GdGWaGd , s, 1990)
(3L (B3 : (3ZGaQ hT s
Keywords: (3GdbUU GdGfcdjRjI s