Prastini, Made, and Tri Hartiti Retnowati. “PENINGKATAN KETERAMPILAN SOSIAL DAN HASIL BELAJAR IPS MELALUI MODEL KOOPERATIF TGT DI SMPN 1 SECANG”. Harmoni Sosial: Jurnal Pendidikan IPS 1, no. 2 (September 1, 2014). Accessed May 7, 2025. https://journal.uny.ac.id/index.php/hsjpi/article/view/2438.