Create a menu tab of different views
Please follow the link about Creating Tabbed Views.

For quick reference, I am copying important steps here from above link.


Create a view.
Name the path (url) to be what you want the default tab to be, for example, 'document/all'.
Configure your view with sorting, filtering, etc.
Choose 'Default menu tab' in Menu option and name it.
Choose 'Normal menu item' to be the parent, since this tab is linked directly from a menu, i.e. 'document'
Finish this first tab.
Create another display.
Name the path of this one as a tab option, like 'document/homework'.
Configure it.
Choose 'Menu tab' for this one.
Finish this tab.
Repeat (8) - (11) for more tabs.


Note: If you want three tabs on same page with different/same view result, then please install Quick Tabs module.


  The Quick Tabs module allows you to create blocks of tabbed content,
  specifically views, blocks, nodes* and other quicktabs*. You can
  create a block on your site containing multiple tabs with
  corresponding content.