Anna Fadliah Rusydi, Shin-ichi Onodera, Mitsuyo Saito, Seiichiro Ioka, and Rizka Maria. “ESTIMATION OF AMMONIUM SOURCES IN INDONESIAN COASTAL ALLUVIAL GROUNDWATER USING Cl- AND GIS”. GEOMATE Journal 17, no. 62 (October 28, 2019): 53–58. Accessed May 5, 2024. https://geomatejournal.com/geomate/article/view/611.