Charoensuk, Anuwat, Amnuay Boonratmaitree, and Wipawadee Wongsuwan. 2016. “The Factor Analysis of Obstacles in Energy Consumption Reduction Using Reverse Logistics of Tier 1 Auto-Parts Industry in Thailand”. Journal of Renewable Energy and Smart Grid Technology 11 (2):1-16. https://ph01.tci-thaijo.org/index.php/RAST/article/view/74864.