I have an input with values and I want to add a value to a div every time I select it. I want to be able to add more than one value.

<div [formGroup]="form">
  <select name="test id="test">
    <option value="one">One</option>
    <option value="two">Two</option>
  </select>
</div>

<!-- I want to display the input value here: -->
<div> {{this.form.value}} </div> 

This way does not work (this.form.value). How can I show the selected values in my div?