1.
Perez V, Garcia A, Gomez J. Facilitation of equivalence – equivalence responding: generalization of relational responses. Int. j. psychol. res. [Internet]. 2011 Dec. 30 [cited 2022 Nov. 29];4(2):20-9. Available from: https://revistas.usb.edu.co/index.php/IJPR/article/view/774