SALAMAGA, Marcin; SALA, Krzysztof. Study on the Effectiveness of Investments in Gold Using a Method TRB. Krakow Review of Economics and Management/Zeszyty Naukowe Uniwersytetu Ekonomicznego w Krakowie, Krakow, n. 6(930), p. 73–86, 2015. DOI: 10.15678/ZNUEK.2014.0930.0605. Disponível em: https://psychologia-ekonomiczna.uek.krakow.pl/index.php/krem/article/view/577.. Acesso em: 20 sep. 2024.