Knowledge, attitudes, practices and barriers for implementation of preventing measures toward COVID-19 among residents of Tan Phu district, Ho Chi Minh city - Nguyễn, Ân; Chung, Nhã; Nguyễn, Dũng; Nguyễn, Ngọc; Võ, Nghĩa; Bùi, Minh (VNUHCM Journal of Health Sciences, 2021)