Sinaga, Indriani Sintiafeni, and Yenita Uswar. 2025. “Improving Students’ Vocabulary Mastery By Using Smile Game At SMP Swasta Hosana Medan”. Edumaspul: Jurnal Pendidikan 9 (2), 1309-14. https://jurnal.unimen.cloud/maspuljr/article/view/9165.