General ACCASAGE 50 Self Study for Certification

Hi everyone, Could anyone please suggest if it is worthwhile buying the SAGE Line 50 workbooks for general accounting Stages 1,2,3? I have access to the SAGE software at my college who also offer SAGE as part of AAT. Please advise me as I am about to do F5, F6, and F7 in June and would like to get SAGE certified by then end of my college term. Thank you