SUGIMAN, Sugiman; RETNOWATI, Endah; AYRES, Paul; MURDANU, Murdanu. LEARNING GOAL-FREE PROBLEMS: COLLABORATIVELY OR INDIVIDUALLY?. Jurnal Cakrawala Pendidikan, [S. l.], v. 38, n. 3, p. 590–600, 2019. DOI: 10.21831/cp.v38i3.26914. Disponível em: https://jurnal.uny.ac.id/index.php/cp/article/view/26914. Acesso em: 7 jun. 2025.