Any Juliani, Suphia Rahmawati, and Minoru Yoneda. “HEAVY METAL CHARACTERISTICS OF WASTEWATER FROM BATIK INDUSTRY IN YOGYAKARTA AREA, INDONESIA”. GEOMATE Journal, vol. 20, no. 80, Apr. 2021, pp. 59-67, https://geomatejournal.com/geomate/article/view/299.