Alayya, U, and L Nugraha Rani. 2019. “Intertemporal Efficiency Analysis of Indonesian Sharia Commercial Bank After Spin off Period 2013-2017: Data Envelopment Analysis (Window Analysis)”. KnE Social Sciences 3 (13), 330–345. https://doi.org/10.18502/kss.v3i13.4214.