Download both JS files (angular and jquery) and add it, upload them to sharepoint library and use reference fromrefer it from that library. e.g. if you uploaded itfiles to Site Assets"Site Assets" library then reference will look like below
<script type="text/javascript" src="../SiteAssets/angular.min.js"></script>
<script type="text/javascript" src="../SiteAssets/jquery-1.9.1.min.js"></script>