Yang, Y.-C., Chiu, Y.-C., & Hong, C.-Y. (2019). Analysis of Cost-benefit and CO2 Emissions of Solar Energy-Intelligent Poultry Feeding System: Application of NPV and Dynamic Environmental I-O Model. International Journal of Energy Economics and Policy, 10(1), 178–184. Retrieved from https://econjournals.com./index.php/ijeep/article/view/8443