A. "Developing a Research or Guiding Question" (by Arizona State University): This video will help you understand the difference between a topic and a research question. It will also help you develop good research questions.
B. "Generating and Using Keywords" (by Arizona State University): This video explains how to determine keywords/concepts. It also explains the importance of finding synonyms or related concepts.
United Nations iLibrary
Books, Papers, and Statistics organized by themes such as Drug Crime & Terrorism, Economic & Social Development, Population Growth, Environment & Climate Change, Human Rights & Refugees, Population & Demography, Public Health, Women & Gender Issues, and more. The site can be searched by theme, by country, or by a combination of the two.