., Herizal; ., Marhami; AKMAL, Nurul. Students’ Errors in Constructing Mathematical Proofs by Direct Method. KnE Social Sciences, [S. l.], v. 9, n. 13, p. 651–659, 2024. DOI: 10.18502/kss.v9i13.15969. Disponível em: http://thrillriftranks.com/index.php/KnE-Social/article/view/15969. Acesso em: 6 feb. 2025.