Premashthira, Aerwadee, Kulapa Kuldilok, and Visit Limsombunchai. 2023. “Outcomes and Impacts of Investment in Research and Development of Biochemical Energy and Biodegradable Plastics”. Science and Engineering Connect 46 (4). Bangkok, Thailand:337-52. https://ph04.tci-thaijo.org/index.php/SEC/article/view/10231.