Subroto, W.T. , Nasution and Sukartiningsih, W. 2014. Development of Competence Balance-Oriented Integrative Thematic Learning Tools to Foster Critical Thinking Skill and Positive Character of Elementary School Students. International Journal of Education and Practice. 2, 12 (Sep. 2014), 275–288. DOI:https://doi.org/10.18488/journal.61/2014.2.12/61.12.275.288.