Osillos , Zyra Gayle, Nhoymie Alberto, Marissa Los Baños, and Roel Estrellon. “ValenaGrow: A Soil Monitoring and Irrigation System”. Journal of Pure and Applied Sciences 3, no. 1 (June 30, 2025). Accessed August 4, 2026. https://csu.org.ph/jpas/article/view/jpas-vol3no1-valenagrow-soil-irrigation-study.