Alat Pengukur pH Tanah Untuk Mengukur kandungan pH Tanah di Desa Cempaka                      . TechNova: Journal of Informatics and Information Systems (TJIIS), [S. l.], v. 1, n. 1, p. 1–6, 2026. DOI: 10.67219/tjiis.1.1.28. Disponível em: https://ejournal.umbanten.ac.id/index.php/technova/article/view/28. Acesso em: 21 jul. 2026.