Peña Aguilar, K. J. (2020). The use of role-play to develop speaking skills.
Čikaški stil citiranja (17. izdanje)Peña Aguilar, Katia Johana. The Use of Role-play to Develop Speaking Skills. 2020.
MLA način citiranja (9. izdanje)Peña Aguilar, Katia Johana. The Use of Role-play to Develop Speaking Skills. 2020.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.