FATHIMA, N.; KUMAR, S. B. V.; BAGALI, M. U. An Embedded IoT-Based System for Real-Time NPK Soil Quality Monitoring in Precision Agriculture. Engineering, Technology & Applied Science Research, Greece, v. 16, n. 2, p. 33211–33217, 2026. DOI: 10.48084/etasr.17091. Disponível em: https://www.etasr.com/index.php/ETASR/article/view/17091. Acesso em: 29 apr. 2026.