Build a Web Application

With the following functions :
1. Login / Logout
2. User management
3. List Services
4. List Users & Students
5. Students registration
6. Electronic contract
7. PDF contract
8. Appointment schedule
9. Lesson record (Record Card)
10. Payment (Receipt)
11. Payment management
12. Electronic receipt
13. PDF receipt
14. Printing
15. E-mail notification
16. Text notification
17. Reports
18. Book keeping
19. Data Backup