An Investigation of the Effects of Mask-Wearing on Confidence Levels of Young People to Middle Age in Bangkok Metropolitan Region Journal title: International Journal of Current Science Research and Review Authors: Janisata Pitakuldilog, Nanpawin Teeranangsu, Suphanida Siritaweesil, Subject(s): Agricultural Science, Plant Sciences, Economic Development, Technological Change and Growth, Medical Education , Business, Commercial, Consumer and Financial Law, Mathematical Modelling and Industrial Mathematics, Philosophy of the Social Sciences, Humanities, Multidisciplinary, Psychology, Multidisciplinary, Engineering, Multidisciplinary, Materials Science, Multidisciplinary