References
- 1. customer1.PNG
- 2. customer2.PNG
- 3. customer3.PNG
- 4. grouptutoring.jpg
- 5. invalid.png
- 6. onetutor.png
- 7. valid.png
Source: https://www.istockphoto.com/sg/photo/smiling-middle-aged-businesswoman-gm915741304-252011588
Source: https://www.istockphoto.com/sg/photo/lets-delve-into-this-code-gm937135454-256348
Source: http://www.iconninja.com/incorrect-delete-circle-x-cross-invalid-close-icon-461
Source: http://www.iconninja.com/success-correct-check-valid-tick-yes-mark-icon-458