Endriani, C. R., A. Yuliyanto, A. Fujiarti, C. Cunayah, R. Mubarok, and W. Wandi. “The Effect Of Behavior Contracts On The Prevention Of Procrastination Of Elementary School Students”. International Conference on Elementary Education, Vol. 7, no. 1, Mar. 2025, pp. 136-47, https://proceedings.upi.edu/index.php/icee/article/view/3975.