Wantoputri, Noviani Ima, Adam Rus Nugroho, and Sitti Munawaroh. “Analysis of Nitrogen Concentration (Nitrate, Nitrite, Ammonia) in Groundwater in Ngaglik SubDistrict, Sleman Regency, Yogyakarta Province”. Open Soil Science and Environment 2, no. 1 (June 10, 2024): 1–8. Accessed May 1, 2026. https://soilenvironment.com/index.php/OSSE/article/view/15.