- Author: Brooks Andrew
- Language: English
- Year: 2017
- Author: Brooks Andrew
- Language: English
- Year: 2017
- Author: Cimadamore Alberto D., Lie Gro Therese, Mittelmark Maurice B., Ottemöller Fungisai P. Gwanzura
- Language: English
- Year: 2016
- Author: Cimadamore Alberto D., Lie Gro Therese, Mittelmark Maurice B., Ottemöller Fungisai P. Gwanzura
- Language: English
- Year: 2016
- Author: Blum Richard C., Haynes Thomas C
- Language: English
- Year: 2016
- Author: Appel Jacob, Karlan Dean S
- Language: English
- Year: 2011
- Author: Banerjee Abhijit V., Duflo Esther
- Language: Spanish
- Year: 2015
- Author: Banerjee Abhijit V., Duflo Esther
- Language: English
- Year: 2011