This means that in the countries with low income levels. Economic development, the need to rely on natural resources and the environment very seriously. However, the country has developed into a high enough income levels. Country will turn their attention to environmental issues is increasing. In addition, the technology to produce better and pollution have resulted in lower amounts (Beckerman, 1992; Frankel & Rose, 2002; International Bank for Reconstruction and Development, 1992).
การแปล กรุณารอสักครู่..