โพธิ์ลี้ เ., จันทน์ขาว น., and ศรีสถิตย์ ส. “Investigation and Improvement of Film Radiography Speed for Non-Destructive Inspection of Industrial Specimens”. Progress in Applied Science and Technology, vol. 5, no. 2, Dec. 2015, pp. 59-73, https://ph02.tci-thaijo.org/index.php/past/article/view/243180.