Dao , T.-D.; Kieu , V.-H.; Kieu Thi , H.-N.; Nguyen , C.-N.; Dinh Thi, T.-H. Some Notes on the Dynamic Behavior of COVID-19 Epidemic Disease Governed by Modified SEIR Epidemic Model With Saturated Treatment Function. HPU2. Nat. Sci. Tech 2022, 1, 3-23.