Polsawat, Achinee, and Apirat Siritaratiwat. 2021. “Automatic Scratch Detector for Magnetic Disk: Doi: 10.14456/Mijet.2021.13”. Engineering Access 7 (2). Mahasakham, Thailand:89-92. https://ph02.tci-thaijo.org/index.php/mijet/article/view/243412.