1. Brookings Institution (2017). Measuring global citizenship: A collection of practices and tools—Executive summary. Washington, DC: Center for Universal Education, Brookings Institution.
2. CAMPE (2018). Ethics and values in school: Capturing the spirit of education. Education watch 2017 report. Campaign for Popular Education, Dhaka.
3. Ćurko, B., Feiner, F., Gerjolj, S., Juhant, J., Kreß, K., Mazzoni, V., & Strahovnik, V. (2016). Ethics and values education: Manual for teachers and educators. Prepared with support of European Commission. http://www.ethics-education.eu/resources/ManualTeachers_EN.pdf.
4. Department for Education, United Kingdom (2012). Guidance on religious education (RE) and collective worship for academies and free school. UK Department for Education. https://www.gov.uk/search/all?keywords=religious+education&order=relevance.
5. Festinger, L. (1957). A theory of cognitive dissonance. Stanford, CA: Stanford University Press.