1.
Waruwu MGL, Sinaga NM, Putri A, Zai RI, Butar Butar AM, Manullang SMB, et al. Analysis of Students’ Learning Difficulties in Geometry and Measurement Learning at the Elementary School Level. JKPM [Internet]. 2026 Jan. 31 [cited 2026 Mar. 22];5(1):137-48. Available from: https://www.ejurnal.univamedan.ac.id/index.php/jkpm/article/view/1130