HASSAN, Syed Rizwan et al. Comparative Analysis of Power Quality Monitoring Systems. NFC IEFR Journal of Engineering and Scientific Research, [S.l.], v. 7, p. 19-23, feb. 2020. ISSN 2521-0114. Available at: <http://nijesr.com/ojs/index.php/archive/article/view/249>. Date accessed: 19 apr. 2021.