(3MejO GdOjf GdcQeGfi (B: s (3GdacQ GdGSeGYjdi ai YUQ GdMGce HGeQ Gddg (B/ s - (3hhcQ, Hhds; (3Sja GdOjf GdbUjQs ((3ShQjG (B: s (3OGQ GdeOi ddKbGaI hGdfTQ , s, 1980)
Keywords: (3GdadGSaI (B- (3JQGLes; (3GdQLGd (B- (3JQGLes; (3eUQ (B- (3GdGMhGd GdKbGajIs; (3GdcQeGfi (B: (3GMeO Hf YHOGddg MejO GdOjf (B352 - 412 (3g`s; (3GdOYhI GdGSeGYjdjIs