“PKM Learning Mathematics through Quizizz Game Media to Improve Student Learning Outcomes of State Middle School 9 Batam” (2026) SUSTAINABLE INNOVATION IN COMMUNITY SERVICE, 1(1), hlm. 58–63. Tersedia pada: https://ejournal.unrika.ac.id/index.php/STICOS/article/view/12 (Diakses: 9 Juli 2026).