Published in Sanggunian (1999)

Published in Perspectives (1999)

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 in Journal on Environment, Energy and Minerals (1999)

Published in Tao-Kalikasan (1999)

Published in Perspectives (1999)

Published in Philippine Peasant Institute Briefing Paper (1999)

Published in Manila Times (1999)