Sitompul, W. E., E. S. Ginting, and S. Pertiwi. “The Influence of Self-Efficacy, parents’ Social Support and Achievement Motivation on Academic Procrastination on Students”. Indonesia Accounting Research Journal, vol. 10, no. 1, June 2022, pp. 9-17, https://journals.iarn.or.id/index.php/Accounting/article/view/2.