Published in Agriculture (2023)

Published in Manila Bulletin (2012)

Published in Philippine Daily Inquirer (2006)

Published in Philippine Agricultural Scientist, The (Formerly the Philippine Agriculturist) (2005)

Published in Philippine Daily Inquirer (2004)

Published in Philippine Daily Inquirer (2001)

Published in Philippine Daily Inquirer (2000)

Published in Philippine Star (2000)

Published in Manila Times (1993)

Published in Times Journal (1984)