USAID, The NGO Sustainability Index 2007
Klon/Jawor Association, “Situation of the non-governmental sector in Poland in 2004“,2004.
Klon/Jawor Association,”Situation of the non-governmental sector in Poland in 2006“,2006
Klon/Jawor Association, Volunteering, philanthropy and 1% law, 2006
Accademy for the development of philanthropy, Annual Report, 2007