Awikunprasert, Panatsada, Kamonrat Sueangamiam, Thanathip Tantivatana, Vithit Pungkun, Tanapol Dachviriyakij, and Rattapol Rangseevijitprapa. 2021. “Survey of Photoneutron Emitted from 6MV, 10MV, and 15MV Medical LINAC Using Nuclear Track Detection”. Journal of Associated Medical Sciences 55 (1):45-51. https://he01.tci-thaijo.org/index.php/bulletinAMS/article/view/251922.