Jaiphun, Chitchanok, and Anin Rupp. 2022. “Relationship Between Week-Four Effect, Bad News, Volume, and Day-of-The-Week Effect in The Stock Exchange of Thailand”. NIDA Business Journal, no. 30 (December). Bangkok, Thailand:69-87. https://so10.tci-thaijo.org/index.php/NIDABJ/article/view/69.