Vongvizay, Pathom, Pongkaew Udomsamuthirun, Siriluck Ruangrungrote, Tunyanop Nilkamjon, Thitipong Kruaehong, and Suppanyou Meakniti. 2024. “Using Smartphone for Measuring the Magnetic Field Produced by the Current Flow in a Single Straight Line”. Journal of Advanced Development in Engineering and Science 14 (41). Babgkok, Thailand:93-102. https://ph03.tci-thaijo.org/index.php/pitjournal/article/view/3075.