YolandaD. S.; PrartonoT.; KoropitanA. F.; HartantoM. T.; LESTARI; LubisM. R. K. CHEMICAL PARTIONING OF Cu AND Fe IN SURFACE SEDIMENTS ON THE EAST AND WEST COASTS OF NORTH SUMATRA. Jurnal Ilmu dan Teknologi Kelautan Tropis, v. 11, n. 2, p. 387-397, 21 Aug. 2019.