Chen, Miao-Ling, Chi-Lu Peng, and An-Pin Wei. “Advertising, Research and Development, and Capital Market Risk: Higher Risk Firms Versus Lower Risk Firms”. Journal of Business Economics and Management 13, no. 4 (September 17, 2012): 724-744. Accessed November 7, 2024. https://jest.vgtu.lt/index.php/JBEM/article/view/4421.