https://support.google.com/edu/classroom/thread/322891617/–does-qatar-have-free-cancellationhttps://support.google.com/edu/classroom/thread/322891617/–does-qatar-have-free-cancellation

https://support.google.com/edu/classroom/thread/322891617/%EF%BD%83%EF%BD%81%EF%BD%8E%EF%BC%A3%EF%BC%A5%EF%BC%AC%EF%BC%AC%EF%BD%81%EF%BD%94%EF%BD%89%EF%BD%8F%EF%BD%8E-%EF%BD%90%EF%BD%8F%EF%BD%8C%EF%BC%A9%EF%BC%A3%EF%BC%A9%EF%BD%85%EF%BD%93-does-qatar-have-free-cancellation