AUTOMATIC DETECTION AND MONITORING OF AMMONIA (NH3) CONCENTRATION IN WASTEWATER. European Journal of Emerging Technology and Discoveries, [S. l.], v. 2, n. 4, p. 157–165, 2024. Disponível em: https://europeanscience.org/index.php/1/article/view/561. Acesso em: 12 sep. 2025.