Summatta, Chuthong, and Weera Rattanangam. “The Reduction of Input Open-Fault in a CMOS Schmitt-Trigger Inverter”. Creative Science 14, no. 2 (May 1, 2022): 245040. Accessed April 23, 2024. https://ph01.tci-thaijo.org/index.php/snru_journal/article/view/245040.