Flege, James Emil; Bohn, Ocke-Schwen (2021). The Revised Speech Learning Model (SLM-r). In Wayland, R. (ed.). Second Language Speech Learning: Theoretical and Empirical Progress. Cambridge: Cambridge University Press. s. 3-83. doi:10.1017/9781108886901.002.
Flege, James Emil; Bohn, Ocke-Schwen (2021). The revised speech learning model (SLM-r). In Wayland, R. (ed.). Second language speech learning: Theoretical and empirical progress, 84-118. Cambridge: Cambridge University Press. s. 84-118. doi:10.1017/9781108886901.002.