Nithisathian, Kittichok, William P. Wall, Chaturawat Thanitnan, and Ratthanan Ponwiritthon. “Maintaining Indispensable Competitive Advantage: Corporate Strategy for 21st Century”. RMUTL Journal of Business Administration and Liberal Arts 6, no. 1 (May 29, 2018): 11–24. Accessed April 24, 2024. https://so05.tci-thaijo.org/index.php/balajhss/article/view/125980.