Hirosuke Hirano, and Davin Setiamarga. “BIANNUAL MONTHLY CHANGES OF SEA SLUDGE COMPOSITION FROM HIDAKA PORT, WAKAYAMA, JAPAN”. GEOMATE Journal, vol. 19, no. 76, Dec. 2020, pp. 1-8, https://geomatejournal.com/geomate/article/view/809.