Yuliyati YB, Natanael CL. Isolasi Karakterisasi T Asam Humat dan Penentuan Daya Serap Nya Terhadap Ion Logam Pb(II) Cu(II) dan Fe(II). Al-Kimia [Internet]. 2016Jan.10 [cited 2024Nov.24];4(1):43-. Available from: https://journal3.uin-alauddin.ac.id/index.php/al-kimia/article/view/1455