Nguyễn, Văn Nguyên, et al. “HAND GRIP STRENGTH AND INTELLIGENCE SCALE OF 7-9 YEAR OLD STUDENTS IN TWO PRIMARY SCHOOLS IN THUONG TIN DISTRICT, HANOI, 2016”. Vietnam Journal of Nutrition &Amp; Food, vol. 17, no. 4, June 2022, pp. 10-17, doi:10.56283/1859-0381/35.