Olson, Mancur (1. januar 1993). «Dictatorship, Democracy, and Development». The American Political Science Review87 (3): 567–576. JSTOR2938736. doi:10.2307/2938736.
Sawyer, Amos (1. september 2004). «Violent conflicts and governance challenges in West Africa: the case of the Mano River basin area». The Journal of Modern African Studies42 (3): 437–463. ISSN1469-7777. doi:10.1017/S0022278X04000266.
Olson, Mancur (1. januar 1993). «Dictatorship, Democracy, and Development». The American Political Science Review87 (3): 567–576. JSTOR2938736. doi:10.2307/2938736.
Sirnes, Espen; Sjåfjell, Beate (2. mars 2021). «trust». Store norske leksikon (på norsk).
worldcat.org
Sawyer, Amos (1. september 2004). «Violent conflicts and governance challenges in West Africa: the case of the Mano River basin area». The Journal of Modern African Studies42 (3): 437–463. ISSN1469-7777. doi:10.1017/S0022278X04000266.