MURPHY, Dr. David S.; YETMAR, Dr. Scott. An Expected Value Analysis Of The Role Of Secret Shoppers In Combating Petty Corruption. International Journal Of Management And Economics Invention, [S. l.], v. 2, n. 08, p. 710–715, 2016. Disponível em: http://www.rajournals.in/index.php/ijmei/article/view/257. Acesso em: 8 may. 2024.