Implementasi Group Investigation Dengan Pendekatan Problem Based Learning Untuk Meningkatkan Kemampuan Hasil Belajar Mahasiswa: Implementation of Group Investigation With Problem Based Learning Approach to Improve Student Learning Outcomes Kemampuan. icecrs 2018, 1 (3), picecrs.v1i3.1381. https://doi.org/10.21070/picecrs.v1i3.1381.