Penerapan Model Pembelajaran Kooperatif Tipe Group Investigation Bermodifikasi Snowball Throwing Terhadap Hasil Belajar Ekonomi Siswa Kelas X SMA Nusantara Indah Sintang, Kalimantan Barat. suryaedunomics. 2017;1(1):43-48. Accessed September 15, 2026. https://jurnal.umpwr.ac.id/suryaedunomics/article/view/1096