ราชแพทยาคม จำเนียร. “The Demographics of Innovation: Why Demographic Is a Key to the Innovation Race”. Modern Management Journal 16, no. 2 (January 28, 2019): 213–216. Accessed June 27, 2022. https://so04.tci-thaijo.org/index.php/stou-sms-pr/article/view/168375.