Trisnawati, Nika F, and Sundari. “Efektifitas Model Problem Based Learning Dan Model Group Investigation Dalam Meningkatkan Karakter Anti Korupsi”. Mosharafa: Jurnal Pendidikan Matematika, vol. 9, no. 2, May 2020, pp. 203-14, doi:10.31980/mosharafa.v9i2.604.