Hidayat, Muhammad, Raja Septian Armel, and Resti Yulistia Muslim. “Does Government Spending, Investment, and Natural Resources Reduce Unemployment in Riau Province, Indonesia?”. International Journal of Economics and Financial Issues 15, no. 6 (October 13, 2025): 105–111. Accessed December 5, 2025. https://www.econjournals.com/index.php/ijefi/article/view/20261.