Hello Dr Tomova,
Unfortunately I cannot help In regards to free medical English material. However, I do have a question to ask you. Are you in a position yourself or know any other high quality Doctors in Bulgaria that may wish to work in the UK through a private agency for a 3-6 month period, earning approx £50 per hour? There are certain compliance issues, such as passing the IELTS test and joining the GMC, having insurance valid in the UK and getting on a PCT performers list (which we can give advice on.)
It would be fantastic to hear from you if interested. Our agency is called Capital Group Locums we are looking to mainly supply doctors for out of hours work.
Regards,
Philip Osband.