V. T. G. Nguyen, T. N. M. Nguyen, L. N. G. . Nguyen, và V. D. . Nguyen, “STUDY ON THE SITUATION OF EXPANDED VACCINATION IN 2-YEAR-OLD CHILDREN AND MOTHERS’ KNOWLEDGE ABOUT EXPANDED VACCINATION IN GO CONG TAY DISTRICT, TIEN GIANG PROVINCE IN 2021 ”, ctump, số p.h 4, tr 115-123, tháng 10 2022.