Wijayanti, D., 		Sampoerno, P., & 		Meidianingsih, Q.
2021 Jan 13.  The Development of Euclid Geometry’s Teaching Materials Based on KKNI to Improve Students Cognition Analysis and Deductive Reasoning Abilities. Journal of Medives : Journal of Mathematics Education IKIP Veteran Semarang. [Online] 5:1