- Author: James Hargrave, Helen Ross
- Language: English
- Year: 2009
- Author: Anuchat Poungsomlee and Helen Ross
- Language: English
- Year: 1992
- Author: James Hargrave, Helen Ross
- Language: English
- Year: 2009
- Author: Franz Alexander, Helen Ross, Luis Fabricant, Blas A. Sosa, Therese Benedek
- Language: Spanish
- Year: 1979
- Author: Russell Helen Ross
- Language: English
- Year: 1975
- Author: Kathryn Kilby Borland Helen Ross Speicher
- Language: English
- Year: 2005