Angular 13 Fully Validate Custom Multi Step Form Working Demo – Therichpost
Getting Started with Angular Material - Melissa Houghton
Composable Surveys with Angular 9
Angular material stepper header lines styling - Stack Overflow
GitHub - roelbarreto/md-steppers: angular directive for material stepper https://www.google.com/design/spec/components/steppers.html#steppers -types-of-steppers
Angular Material. stepper to beginners | by Tharmika Kulendran | Medium
angular - How to show that the last mat-step is complete in mat-stepper? - Stack Overflow