- Author: Benjamin Andrew E
- Language: English
- Year: 2016
- Author: Benjamin Andrew E
- Language: English
- Year: 2016
- Author: Ferrero Ignacio, Guitián Crespo Gregorio, Sison Alejo G.
- Language: English
- Year: 2018
- Author: Ferrero Ignacio, Guitián Crespo Gregorio, Sison Alejo G.
- Language: English
- Year: 2018
- Author: Professor Mark Alfano
- Language: English
- Year: 2013
- Author: Professor Mark Alfano
- Language: English
- Year: 2013