1. C# | Microsoft Docs, https://docs.microsoft.com/en-us/dotnet/csharp/csharp
2. Drupal, http://drupal.org
3. Extensible Markup Language (XML), https://www.w3.org/XML/
4. Java 8, https://java.com/en/download/faq/java8.xml
5. Pooled and Cluster Tables