MAWARDI, I., T. WIDIASTUTI, P. S. SUKMANINGRUM, and M. U. AL MUSTOFA. “Optimum Financing Portfolio Of Islamic Microfinance Institutions: Indonesia Case”. Utopía Y Praxis Latinoamericana, Vol. 24, no. 1, Dec. 2019, pp. 268-74, http://www.produccioncientifica.luz.edu.ve/index.php/utopia/article/view/29956.