Addoddorn, Chaiporn, Nitikom Ariyapim, Tanut Aekkuerkul, Phongsagorn Chidchob, Jirawat Waroonrod, and Thanakorn Siramongkolkan. 2023. “The Design and Construction of 3 Speed Levels Electric Wheelchair for Disabilities Controlled With Hand by Using Microcontroller”. Srinakharinwirot University Engineering Journal 18 (1). Bangkok, Thailand:70-82. https://ph02.tci-thaijo.org/index.php/sej/article/view/245822.