Correlation of secondary school science curricula and students' cognitive level in earth sciences in the Philippines and Japan. 第55回日本理科教育学会(鳴門教育大学). 2005
Correlation between science curriculum and cognitive level in earth science of secondary school students in the Philippines and Japan. Center for Research in Pedagogy and Practice Conference 2005, Redesigning Pedagogy: Research, policy and practice(Nanyang Technological University). 2005
Correlation between science curriculum and cognitive level in earth science of secondary school students in the Philippines and Japan. Proceedings of the Center for Research in Pedagogy abd Practice Conference 2005, Redesigning Pedagogy: Research, policy abd practice. 2005. 55