Gultom I, Margareta E, Manullang DT. The Effect of Snowball Throwing Type Cooperative Learning Model on Learning Outcomes of Grade VIII Students in Subjects of Social Studies at SMP Swasta Parulian 2 Medan. JRIP [Internet]. 2025May17 [cited 2025Jul.1];5(2):354-9. Available from: https://jurnal.larisma.or.id/index.php/JRIP/article/view/1041