Rangkuti A, Karo-Karo IR. The Effect of the Group Investigation Model Assisted by the “Make a Match” Game on Mathematical Problem-Solving Ability in Statistics. J.Math.Instr.Soc.Res.Opin. [Internet]. 2026 Aug. 19 [cited 2026 Aug. 20];5(3):2405–2414. Available from: https://journal-gehu.com/index.php/misro/article/view/1995