Pestaria, Anton, Kamaludin Kamaludin, Husaini Husaini, and Fadli Fadli. “The Mediating Role of Age Productivity on Human Resources Development, Health Infrastructure, and Proverty Level”. International Review of Management and Marketing 12, no. 1 (January 5, 2022): 11–18. Accessed July 6, 2022. https://www.econjournals.com/index.php/irmm/article/view/12539.