Nordin, N. ., N. . Nordin, and N. W. . Ismail. “A Study of Population Ages Structure and Health Care Expenditure in India: Kajian Keperluan Struktur Umur Dan Perbelanjaan Penjagaan Kesihatan Di India”. Journal of Management and Muamalah , vol. 7, no. 1, June 2017, pp. 1 - 17, https://jmm.kuis.edu.my/index.php/jurnal/article/view/62.