Published in Philippine Daily Inquirer (2013)

Published in Malaya Business Insight (2012)

Published in Philippine Star (2012)

Published in U.P. News (2009)

Published in Manila Times (2006)

Published in Philippine Daily Inquirer (2004)

Published in Malaya (1989)

Published in Manila Bulletin (1989)

Published 1985

Published in ASEAN Comparative Law Series (1982)