Sripirom, Nataphon, Pantip Klomjek, and Charoon Sarin. 2025. “Knowledge, Attitudes, and Practices of Green Public Procurement (GPP) among the Local Administrative Organizations”. SOCIAL SCIENCES RESEARCH AND ACADEMIC JOURNAL 20 (3). Bangkok, Thailand:135-50. https://so05.tci-thaijo.org/index.php/JSSRA/article/view/280468.