Armijos Iñiguez, P. M. (2016). The jigsaw as a cooperative learning strategy to improve speaking skill among students of 2nd year of bachillerato internacional, at Bernardo Valdivieso high school of Loja city, during the academic period 2014-2015.
Lua i Stíl Chicago (17ú heag.)Armijos Iñiguez, Paula Michelle. The Jigsaw as a Cooperative Learning Strategy to Improve Speaking Skill Among Students of 2nd Year of Bachillerato Internacional, at Bernardo Valdivieso High School of Loja City, During the Academic Period 2014-2015. 2016.
Lua MLA (9ú heag.)Armijos Iñiguez, Paula Michelle. The Jigsaw as a Cooperative Learning Strategy to Improve Speaking Skill Among Students of 2nd Year of Bachillerato Internacional, at Bernardo Valdivieso High School of Loja City, During the Academic Period 2014-2015. 2016.