Purwiandono G, Ibrahim S. Adsorpsi Logam Cu(II) Menggunakan Adsorben Kulit Buah Salak Teraktivasi HNO3. IJCR [Internet]. 2022 Jul. 18 [cited 2024 Nov. 23];7(1):1-7. Available from: https://journal.uii.ac.id/chemical/article/view/24043