Spratt, M., Pulverness, A., & Williams, M. (2011). The TKT teaching knowledge test course: Modules 1,2 and 3 (2nd ed.). Cambridge University Press.

Spratt, Mary, Alan Pulverness, and Melanie Williams. The TKT Teaching Knowledge Test Course: Modules 1,2 and 3. 2nd ed. Cambridge: Cambridge University Press, 2011.

Spratt, Mary, et al. The TKT Teaching Knowledge Test Course: Modules 1,2 and 3. 2nd ed. Cambridge University Press, 2011.