Do NGOs have a set of processes for selecting suppliers?

Order details:
Task objective:
This order is about supporting the following: “Decision-making impact in the Flow of Relief
in Post-Conflict Areas: The case of NGOs in Gaza”.
Task description:
The research topic is about procurement in NGOs operating in these post-conflicted areas,
particularly finding out how procurement is according to theories, compare the findings to
what is implemented in practice, and try to find ways to improve the existing procedures.
Therefore, the way forward is to find gaps in the existing literature, elaborate a set of
questions around those gaps, conduct interviews of NGOs if post-conflict area (Gaza, as an
example), analyse the findings and propose, either a framework or a set of processes that
would improve the existing procurement procedures for those NGOs.
This order is about finding gaps in existing literature, which is the first step (as explained
earlier). This order is also an extension of the previous one #855702. Its aim is to briefly
analyse various references in relation to the following questions:
Q1: Do NGOs have a set of processes for selecting suppliers?
Q2: Do NGOs consider the elaboration of selection criteria when selecting suppliers?
Q3: What are the main selection criteria NGOs consider when selecting suppliers?
Q4: How do NGOs make decisions concerning procurement?
Q5: How do NGOs implement related decisions?
Please analyse at least 15 references per questions, please fill a table containing the
following:

• Reference
• Related question number
• Used Methodology
• Research Findings
• Implications and Consequences of Research
• Existing Research Gap
  PS:
  Please look for new references, please try to avoid mentioning ones used in the previous
  order.
  Once done, there will be other orders tackling other aspects of the research, for instance:
  a/
  For decision processes:
• Did existing literature detail how to elaborate a complete set of processes for the
  selection of suppliers?
• Did existing literature propose a tentative set of processes for the selection of
  suppliers?
  Similar for framework: