Phiangpranthong, T., & Hongprasit, S. (2020). Development of a CMOS frequency to voltage converter: doi: 10.14456/mijet.2020.9. Engineering Access, 6(1), 40–43. Retrieved from https://ph02.tci-thaijo.org/index.php/mijet/article/view/10.14456.mijet.2020.9