1. Anthamatten, P. (2010). Spatial thinking concepts in early grade-level geography standards. Journal of Geography, 109(5), 169–180. https://doi.org/10.1080/00221341.2010.498898
2. Badan Standar Nasional Pendidikan. (2020). Fokus pembelajaran SD/MI - SMP/MTs - SMA/MA [Learning focus SD/MI - SMP/MTs - SMA/MA] (1st ed.). Badan Standar Nasional Pendidikan.
3. Bednarz, S. W., Heffron, S., & Hyunh, N. T. (Eds.). (2013). A road map for 21st century geography education: Geography education research. Association of American Geographers https://bit.ly/3n2lZug
4. Bednarz, S. W., & Kemp, K. (2011). Understanding and nurturing spatial literacy. Procedia - Social and Behavioral Sciences, 21, 18–23. https://doi.org/10.1016/j.sbspro.2011.07.004
5. Behlert, B., Diekjobst, R., Felgentreff, D. C., Manandhar, T., Mucke, P., Pries, P. D. L., Radtke, D. K., & Weller, D. (2020, September 15). World Risk Report 2020-Focus: Forced displacement and migration. Relief Web. https://bit.ly/42bQ7DE