Surya, Yenni Fitra. “PENERAPAN MODEL GROUP INVESTIGATION (GI) UNTUK MENINGKATKAN HASIL BELAJAR IPA SISWA DI KELAS IV SDN 018 LANGGINI KABUPATEN KAMPAR”. JURNAL HANDAYANI PGSD FIP UNIMED 7, no. 1 (July 9, 2017): 65–77. Accessed January 31, 2025. http://103.242.233.34/index.php/handayani/article/view/6576.