ARWADI, F.; BUSTANG, B. Supporting elementary school children’s skill and concept understanding in solving combinatorics problems. Jurnal Pendidikan dan Pengajaran, [S. l.], v. 51, n. 1, p. 23–31, 2018. DOI: 10.23887/jpp.v51i1.13985. Disponível em: https://ejournal.undiksha.ac.id/index.php/JPP/article/view/13985. Acesso em: 4 may. 2024.