(3GdOdjd GdYQHj aj GdJNWjW GdeMGSHj h GdEMUGA HESJNOGe (BPFS:plain / s - (3MSfj, EHQGgje MSjfs ((3GdbGgQg (B:s (3GdMSjfj ddceHjhJQ h fXe GdeYdheGJ,s, 1990)
Keywords: (3GdeMGSHIs; (3GdMhGSjHs