Achievement refers to the average of the student's grade level individually on each of the 8 strand learning learning in basic education courses, high school academic year 2553 (2010)
The achievement represents the average of the grades of the individual student learning in each of eight groups of learning in basic education courses for high school students in 2553.
Achievement means the average grade of individual students in the learning of each 8 group learning in the curriculum of basic education high school. In 2553.