Monetary and Non-monetary Gift Exchange. The Pakistan Development Review, [S. l.], v. 49, n. 4II, p. pp.719–740, 2010. DOI: 10.30541/v49i4IIpp.719-740. Disponível em: https://thepdr.pk/index.php/pdr/article/view/2427. Acesso em: 26 oct. 2025.