Published regimental histories can be useful sources if you are researching units or individuals who served with the British Salonika Force. Producing and maintaining a comprehensive list of relevant regimental histories is beyond my capabilities and the scope of this website, but fortunately the Army Museums Ogilby Trust offers an online search facility for regimental histories:
Of course, you will find that many of the publications are now out of print, necessitating a visit to a museum or trying to obtain it through the library service or second-hand booksellers. Fortunately, Naval and Military Press have reprinted many of these. You will find full details on their website.
Of course, I am always happy to promote any newly published books on the campaign, so please let me know if you are aware of any.