Lập trình Angular

https://drive.google.com/u/0/uc?id=1Df9fZ74fU-FPqvD9op5F3pZH_3Z4qlmU&export=download  

  https://nhobethoi.com/ngrx-2-viet-mot-sample-ve-ngrx-todoapp/

  https://viblo.asia/p/bao-ve-routes-su-dung-guards-trong-angular-3Q75wWX35Wb

  https://gtvseo.com/giao-dien-trang-quan-tri-website/

 https://www.npmjs.com/package/diff-match-patch

https://www.npmjs.com/package/angular-gridster2   https://github.com/tiberiuzuld/angular-gridster2