21
Published 2008
Book
22
23
Published 2007
Book
25
by Campomanes, Oscar V.
Published 2004
Conference Proceeding Book
26
Published 2004
Book
27
28
Published 2003
Book
29
Published in Manila Bulletin (2002)
Article
31
by Aplin, Graeme
Published 2002
Book
32
by Heilbrun, James
Published 2001
Book
33
by Sta. Maria, Felice Prudente
Published 2001
Book
34
Published 2001
Book
35
36
Published 2001
Book
37
Published 2001
Book
39
40
Published 1999
Book