ULKHAQ, M. Mujiya. Measuring the efficiency of sharia business units of Indonesian private banks: a data envelopment analysis approach. Journal of Islamic Economics Management and Business (JIEMB), [S. l.], v. 4, n. 2, p. 207–214, 2022. DOI: 10.21580/jiemb.2022.4.2.12913. Disponível em: https://journal.walisongo.ac.id/index.php/JIEMB/article/view/12913. Acesso em: 6 aug. 2026.