OLIŃSKA, Iwona. “Suggest a purchase” – a purchase model or crowdsourcing?. Folia Toruniensia, [S. l.], v. 16, p. 93–96, 2016. DOI: 10.12775/FT.2016.009. Disponível em: https://apcz.umk.pl/FT/article/view/FT.2016.009. Acesso em: 8 jul. 2025.