Mufliha, D. I. M., E. Erlangga, and R. Sugiarti. “The Effect of Social Support and Self-Efficacy on Academic Procrastination With Smartphone Addiction As an Intervening Variable in Completing Final Students’ Assignments”. Ranah Research : Journal of Multidisciplinary Research and Development, Vol. 7, no. 5, June 2025, pp. 3329-43, doi:10.38035/rrj.v7i5.1630.