(3GdeJfHj (B: s (3eGdj GdOfjG hTGZd GdfGS (B/s ((3HZOGO,GdYQGb (B:s (3OGQ GdQTjO ddfTQ , s, 1977)
(3hbGFY egQLGf GdeJfHj GdPj GbGeJg hRGQI GdKbGaI hGdafhf GdYQGbjI aj HZOGO ef (B5-10 (3JTQjf GdKGfj (B1977.s
Keywords: (3GdTYQ GdYQHjs -- (3JGQjNs -- (3GdYUQ GdYHGSjs