Polsawat, A., and A. Siritaratiwat. “Automatic Scratch Detector for Magnetic Disk: Doi: 10.14456/Mijet.2021.13”. Engineering Access, vol. 7, no. 2, Mar. 2021, pp. 89-92, https://ph02.tci-thaijo.org/index.php/mijet/article/view/243412.