Kongkaew, T., & Saengpao, C. (2024). Investment Strategies in Covid-19 Pandemic: Comparative Analysis of Stock Investment Performance in the SETTHSI Index and the SET100 Index Utilizing Dollar Cost Averaging (DCA), Lump Sum (LS), and Value Averaging (VA) Strategies. Journal of Business, Innovation and Sustainability (JBIS), 19(2). สืบค้น จาก https://so02.tci-thaijo.org/index.php/BECJournal/article/view/265791