Fernández-Santander, Ana, María José García-García, Beatriz Sáez-Pizarro, and María José Terrón-López. “Development and Assessment of Key Skills in Undergraduate Students: An Action-Research Experience”. Higher Learning Research Communications 2, no. 1 (March 1, 2012): 32-49. Accessed October 22, 2019. https://hlrcjournal.com/index.php/HLRC/article/view/37.