Manurung PS. Efektivitas penggunaan model giving question and getting answer (GQGA) dalam meningkatkan hasil belajar matematika siswa di MTS Islamiyah Medan. SENATIK [Internet]. 2020 Aug. 31 [cited 2025 Dec. 6];5:293-300. Available from: https://conference.upgris.ac.id/index.php/senatik/article/view/963