โดยใช้โดยใช้หลักการศึกษาการทำงาน ที

By using the principle of effective work and compare data before and after an update from the suggestions. Without causing impact to manufacturing, which makes the cost of producing water glass. Because of the reduction in expenditure in the paid work force people. This is the reason, there must be a cost reduction in the production processes of plants.

By using the principle of student work. Effective And compare data before and after improvement of feedback. Without causing a negative impact on production volumes. This will make the cost of manufacturing a glass of water. With lower production costs. To reduce the wages of labor. This is why the need to reduce costs in the production process of the plant sample.

By using the principle of student work efficient Compare the data before and after improvement of suggestion Without effect on production The production cost of the water cupDue to reduce expenses to pay labor This is why there must be to reduce the cost in the production process of the factory