Suwannapak, Suthasinee, Sineenat Huhttarak, Surachai Chancharat, and Nongnit Chancharat. “Test of the Day-of-the-Week Effect on Stock Market Volatility: The Case of the SET50 Index”. KKU Research Journal (Graduate Studies) Humanities and Social Sciences 7, no. 3 (November 27, 2019): 134–145. Accessed April 20, 2024. https://so04.tci-thaijo.org/index.php/gskkuhs/article/view/226986.