Liu Y, Autchariyapanitkul K, Nunthasen K, Sinnarong N. The Impact of Population Aging on Economic Development in China: Insights from Heilongjiang, Hebei, and Hunan. IARJ [internet]. 2025 Nov. 24 [cited 2026 Sep. 24];5(6):837-58. available from: https://so03.tci-thaijo.org/index.php/IARJ/article/view/286770