Published in Journal on Environment, Energy and Minerals (1999)

Published in Journal on Environment, Energy and Minerals (1999)

Published in Journal on Environment, Energy and Minerals (1999)

Published 1999

Published 1999

Published in Philippine Peasant Institute Briefing Paper (1999)

Published in Manila Times (1999)

Published in Manila Bulletin (1999)

Published in Manila Bulletin (1999)

Published in Manila Bulletin (1999)