AGARWAL, S. A Non Contact Multiple Ring CSRR Based Planar Microwave Sensor for Accurate Quality Estimation of Water Samples with Varying TDS. Defence Science Journal, [S. l.], v. 71, n. 03, p. 378–382, 2021. DOI: 10.14429/dsj.71.16718. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/16718. Acesso em: 16 jun. 2025.