Published in Philippine Daily Inquirer (2002)

Published in Philippine Daily Inquirer (2001)

Published in Philippine Daily Inquirer (2001)

Published in Manila Times (2001)

Published in Manila Times (2001)

Published in Manila Times (2001)

Published in Manila Times (2001)

Published in Gold mining in Benguet. (2001)

Published in Philippine Studies: Historical and Ethnographic Viewpoints (2001)

Published in Manila Times (2001)