Thaweecheep, Chanusda, and Pathaichit Eagjariyakorn. “Legal Measures for the Eco-Friendly Products and Services Procurement of Thailand’s Government Sector”. Rajapark Journal 15, no. 41 (July 15, 2021): 101–113. Accessed May 6, 2024. https://so05.tci-thaijo.org/index.php/RJPJ/article/view/250640.