APA引文

Gamarra Astuhuaman, G., & Pujay Cristóbal, O. E. (2020). Problem Solving, Skills and Academic Performance when Teaching Mathematics.

Citación estilo Chicago

Gamarra Astuhuaman, Guillermo, y Oscar Eugenio Pujay Cristóbal. Problem Solving, Skills and Academic Performance When Teaching Mathematics. 2020.

MLA引文

Gamarra Astuhuaman, Guillermo, y Oscar Eugenio Pujay Cristóbal. Problem Solving, Skills and Academic Performance When Teaching Mathematics. 2020.

警告：这些引文格式不一定是100％准确.