(3YjT GdZQGH (B/ s - (3eOHhdj, ahRj Mfajs; (3GdMSjfj, eMeO CMeOs ((3GdbGgQI (B:s (3ecJHI EHf SjfG,s, 1991)
Keywords: (3YjT GdZQGHs; (3GdWH GdTYHjs