Khoirunnas, D. F., and F. Pribadi. “Analysis of Financial Services and Performance at Al-Islamic Hospital At-Turots Yogyakarta in the Era of National Health Insurance”. The International Journal of Business & Management, vol. 6, no. 9, Sept. 2018, https://www.internationaljournalcorner.com/index.php/theijbm/article/view/132203.