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- Language: English
- Year: 1985
- Author: Valfred Thelin Patricia Burlin
- Language: English
- Year: 1989
- Author: Foster Caddell
- Language: English
- Year: 1983
- Author: Harry Borgman
- Language: English
- Year: 1990
- Author: Jose M. Parramon
- Language: English
- Year: 1991
- Author: Jose M. Parramon
- Language: English
- Year: 1990
- Author: Margie Deeb
- Language: English
- Year: 2004