Pramono, Y., 		Abdussakir, A., 		Irawan, W., & 		Sujarwo, I.
2025 Jan  6.  Students Proportional Reasoning Level in Solving Ill Structured Problem on Proportion Material in Terms of Gregorc’s Thinking Style. Journal of Medives : Journal of Mathematics Education IKIP Veteran Semarang. [Online] 9:1