2
by Clark, Alexander
Published 2018
Book
3
by Johnson, W. Brad
Published 2016
Book
5
6
8
10
by Alamon, Arnold, Ramirez, Ramon
Published 2013
Book
11
12
Article
14
18
by Punay, Edu
Published in Philippine Star (2012)
Article
19
by Klein, Michael W. 1958-
Published 2011
Book