SRISONGKHAM, S.; PHOTONG, C. Ion Balance Measuring and Recording System for Air Ionizers: doi: 10.14456/mijet.2021.6. Engineering Access, Mahasakham, Thailand, v. 7, n. 1, p. 36–42, 2020. Disponível em: https://ph02.tci-thaijo.org/index.php/mijet/article/view/10.14456.mijet.2021.6. Acesso em: 27 aug. 2026.