Chaisomkun, Buncha. 2025. “THE MODERATING EFFECT OF CEO DUALITY ON THE RELATIONSHIP BETWEEN RESEARCH AND DEVELOPMENT INVESTMENTS AND FIRM VALUE OF COMPANIES LISTED ON THE STOCK EXCHANGE OF THAILAND”. Journal of Liberal Arts and Management Science Kasetsart University 12 (1). Sakon Nakhon, Thailand:39-53. https://so14.tci-thaijo.org/index.php/jlams/article/view/1373.