Soil Fertilizer Recommendation System using Soil Analysis and Cloud IoT Platform. International Journal of Food and Nutritional Sciences, [S. l.], v. 11, n. 12, p. 9696–9705, 2022. Disponível em: http://www.ijfans.org/index.php/Journal/article/view/13834. Acesso em: 26 aug. 2026.