LUO, Heng; ROBINSON, Anthony C.; PARK, Jae-Young. Peer Grading in a MOOC: Reliability, Validity, and Perceived Effects. Online Learning, Boston, MA, v. 18, n. 2, 2014. DOI: 10.24059/olj.v18i2.429. Disponível em: https://olj.onlinelearningconsortium.org/index.php/olj/article/view/429. Acesso em: 30 mar. 2026.