Daily Express: "Helena Rubinstein, the penniless refugee who built a cosmetics empire" By Cheryl Stonehouse March 16, 2013 "Oral history interview with Ruth Rappaport – USHMM Collections Search". collections.ushmm.org.
Truy cập ngày 8 tháng 8 năm 2008.  ^ Daily Express: "Helena Rubinstein, the penniless refugee who built a cosmetics empire" By Cheryl Stonehouse March 16, 2013 ^ “Oral history interview with Ruth Rappaport - USHMM Collections Search”. collections.ushmm.org.