Puspasari, H. ayu, Khoerunisa NM, A.D., Soolany, C., Soolany, C. and Rahman Setiawan, A.A. 2025. The Pineapple Peel Filtrate with Chelation Method to Adsorp Chromium (Cr) Heavy Metal : Filtrat Kulit Nanas untuk Adsorpsi Logam Berat Kromium (Cr) Menggunakan Metode Khelasi. RATIH: JURNAL REKAYASA TEKNOLOGI INDUSTRI HIJAU. 10, 1 (Aug. 2025), 24-32. DOI:https://doi.org/10.52802/ratih.v10i1.1723.