SARI, Novita; SURYA, Edy. Analysis Effectiveness of Using Problem Posing Model in Mathematical Learning. International Journal of Sciences: Basic and Applied Research (IJSBAR), Jordan, v. 33, n. 3, p. 13–21, 2017. Disponível em: https://gssrr.org/JournalOfBasicAndApplied/article/view/7369. Acesso em: 27 oct. 2025.