ROBERTSON, S. E. Smiling and Nodding. OLA Quarterly, [S. l.], v. 20, n. 1, p. 26–27, 2014. DOI: 10.7710/1093-7374.1011. Disponível em: https://journals3.library.oregonstate.edu/olaq/article/view/vol20_iss1_12. Acesso em: 16 may. 2024.