Maulana, Indra, et al. “The Impact of Income Diversification on Performance and Risk Taking: Case in Indonesia’s Shariah Banking During Covid-19”. TSARWATICA (Islamic Economic, Accounting, and Management Journal), vol. 4, no. 2, Feb. 2023, pp. 29-38, https://ojs.stiesa.ac.id/index.php/tsarwatica/article/view/1025.