Found that children study hard, Thailand was ranked first in 10 years (1,200 hours per year), children study hard, Thailand was ranked first in 11 years (1,200 hours per year).
Thai girl found a heavy lesson 1 in 10 year age level (1200 hours per year). Thai children learn hard top 1 in 11-year-old level (1200 hours per year).
Thai children study found that heavy a rating level 1 in 10-year-old (1,200 hours per year), Thai children study hard as a top priority in a level 1 age 11 years (1,200 hours per year).