(3GdfbhO GdYQHjIGdadSWjfjI hScJgG GdGLfHjI (B: s ( (3ef GdbQf GdSGOS bHd GdejdGO h MJi YGe (B1946 (3e (B) / s - (3Sdje YQaGJ GdeHjVs ((3GdbGgQI (B: s (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1989)
Keywords: (3GdfbhOs; (3Sc GdfbhOs; (3GdfbhO GdeYOfjIs