Transition between two single-page-app pages within the same angular application

How could I move from a page that uses an ng-app="MyAppFrontEnd" and its own set of CSS and JavaScript to a different page that uses ng-app="MyAppAdminEnd" and has its own set of CSS and JavaScript?

I am using ExpressJS and NodeJS at the server end for routing.

/* GET home page. */
router.get('/', function(req, res) {
  res.render('index', { title: 'My App Front End Title' });
});

/* GET admin front */
router.get('/users', function(req, res) {
  res.render('users', { title: 'My App Admin End Title' });
});

index.ejs uses ng-app="MyAppFrontEnd" and users.ejs uses ng-app="MyAppAdminEnd".

Could somebody help me with it?