(3eQhjGJ ZRhI Hfi GdeUWdb (B:s (3hgi ZRhI GdeQjSjY (B/s - (3bQjHi (B: (3EHQGgje Hf EHQGgjes ((3GdeOjfI GdefhQI (B:s (3GdLGeYg GdESdGejI (B:s, 1989)
(3jTJed Ydi GQLGYGJ HHdjhLQGajI (B((3U (B369-387)s
Keywords: (3GdZRhGJ GdGSdGejIs; (3ZRhGJ GdfHis; (3ZRhI Hfi GdeUWdbs