Silber, Ilana F. (1995). "Gift-giving in the great traditions: the case of donations to monasteries in the medieval West". European Journal of Sociology / Archives Européennes de Sociologie / Europäisches Archiv für Soziologie. 36 (2): 209–243. doi:10.1017/S0003975600007542. ISSN0003-9756. JSTOR23997785.
Silber, Ilana F. (1995). "Gift-giving in the great traditions: the case of donations to monasteries in the medieval West". European Journal of Sociology / Archives Européennes de Sociologie / Europäisches Archiv für Soziologie. 36 (2): 209–243. doi:10.1017/S0003975600007542. ISSN0003-9756. JSTOR23997785.
"Gifts and Payments". Washington, D.C.: United States Office of Government Ethics. Archived from the original on September 15, 2020. Retrieved September 19, 2018.
"Gifts and Payments". Washington, D.C.: United States Office of Government Ethics. Archived from the original on September 15, 2020. Retrieved September 19, 2018.
Silber, Ilana F. (1995). "Gift-giving in the great traditions: the case of donations to monasteries in the medieval West". European Journal of Sociology / Archives Européennes de Sociologie / Europäisches Archiv für Soziologie. 36 (2): 209–243. doi:10.1017/S0003975600007542. ISSN0003-9756. JSTOR23997785.