L. CIA, Richard; SALIH, Maria. Problem Solving Confidence and Attitudes in Mathematics of Grade Six Pupils of Sawata Ernandcor Central Elementary School. Jurnal Pendidikan Sains dan Matematik Malaysia, [S. l.], v. 5, n. 1, p. 35–43, 2015. Disponível em: https://ejournal.upsi.edu.my/index.php/JPSMM/article/view/2141. Acesso em: 5 dec. 2025.