1
2
4
by Cuartero, Nestor
Published in Philippine Panorama (2014)
Article
6
by Flores, Helen
Published in Philippine Star (2010)
Article
7
by Maghirang, Tony
Published in Sunday Inquirer Magazine (2007)
Article
9
10
Published 2001
Conference Proceeding Book
11
by Orig, Thor S.
Published in Manila Bulletin (2001)
Article
12
Article
13
Published in Manila Times (2000)
Article
14
Published in Agriculture (2000)
Article
15
Published in Philippine Daily Inquirer (1999)
Article
16
by Weel, Paul ter
Published 1999
Book
17
18
Published in Agriculture (1998)
Article
19
by Samways, Michael J.
Published 1981
Book