Today there is a population increased more needs not only one country. The cost will increase in both the public and private sectors. There are also costs in the family more and more. The cost of individual income tax.We have to study the expense in one month. The students 5 / 3 โรงเรียนจักรคำคณาทร provinces Lamphun, students pay in one month? And you push that the expenses as much as possible.