Summon is usually the best starting point for finding articles, books and dissertations. 

• video intro to Summon (4 mins) 
• collection of guides if you need help with particular Summon searches

You may also want to run supplementary searches in these databases:

•  EBSCO
• Google Scholar: an alternative to Summon
  • info about using Scholar 
  • video intro to Scholar (3 mins)
• Nexis Uni 

When writing about, or researching, cultural property, you can check the preferred terminology for the culture in question via the inclusive vocabulary page.