Arafah, Kaharuddin, y Azhariah Nur B. Arafah, Burhanuddin Arafah. 2020. «Self-Concept and Self-efficacy’s Role in Achievement Motivation and Physics Learning Outcomes». Opción 36 (mayo), 1607-23. https://www.produccioncientificaluz.org/index.php/opcion/article/view/32062.