AVGERIS, Antonios; SERGAKI, Panagiota; KONTOGEORGOS, Achilleas; TIGANIS, Antonios. RECIPROCITY IN STUDENT GROUPS: EXPERIMENTAL EVIDENCE FROM GREECE. International Journal of Economic Sciences, [S. l.], v. 9, n. 1, p. 44–67, 2020. DOI: 10.20472/ES.2020.9.1.003. Disponível em: https://ijes-journal.org/journal/article/view/74.. Acesso em: 22 jan. 2025.