HAKEL, Katja. Oscillating between Conservation and Investment: : A Grounded Theory of Students’ Strategies for Optimizing Personal Resources. Grounded Theory Review, [S. l.], v. 14, n. 01, p. 11–25, 2015. Disponível em: https://groundedtheoryreview.org/index.php/gtr/article/view/207. Acesso em: 8 jun. 2025.