In addition, According to N Hakamies, "Although material and human resources are significant constraints on agencies, the main challenge is to tackle ideological, managerial and policy barriers, and those related to donor influence." Finding funding for family planning services continues to prove difficult for NGOs, and as a result they often do not exist or cannot meet the need levels of their constituencies.  Reproductive Health funding problems underscore a larger issue with a reliance on NGO services, as can often be seen in IDP situations. 