(3fMd GdYSd (B: s (3OQGSI Yf GdSdhc h GdEfJGL h QYGjI GdefGMd (B/ s - (3YjSi, EHQGgje SdjeGfs; (3GdNhdj, YHO GdefYe SdjeGf Ydjs ((3GdbGgQI (B:s (3GdOGQ GdYQHjI ddfTQ h GdJhRjY,s, 1994)
Keywords: (3GdMTQGJs; (3GdfMds; (3GdYSds