Amri, Syaipul, Wahyu Widada, Agus Susanta, and Zamzaili Zamzaili. “Mathematical Problem Solving Capabilities: Self-Confidence, Self-Efficacy, Emotional Intelligence, and Concept Understanding Ability”. PENDIPA Journal of Science Education 4, no. 3 (August 14, 2020): 20–26. Accessed April 28, 2024. https://ejournal.unib.ac.id/pendipa/article/view/12049.