The Impact of the COVID-19 Pandemic on Retrenchment, Vaccinations, and Global Happiness. - Ng Wei Shen Jackson; Jullisha Sasikumar; Wong Yok Hung; Osama Rasheed Khan; Vivian Ng Zhi Hui; Sahar Al-Sudani; Huaqun Guo; Zhiyuan Zhang; Zhengkui Wang (DeSE, 2023)