There are many online resources with information for international students in the UK. You’ve probably found lots of them already. Some are more reliable that others – and when it comes to the rules for working as an international student you need to have the best information available.
If you’ve not already visited the UKCISA website (United Kingdom Council for International Student Affairs) – check it out and bookmark it for future reference. It’s a great student-friendly site that explains the rules about studying and working in the UK. It provides up-to-date, accurate information in a way that is easy to understand – you will find the answers to many of your questions here!