Nababan, D. J., and M. Ali. “PENGARUH PEMBERIAN SLUDGE INDUSTRI PENYAMAKAN KULIT TERHADAP PERKEMBANGAN TANAMAN PUCUK MERAH (SYZYGIUM OLEANA)”. Envirous, vol. 1, no. 2, Aug. 2023, pp. 10-18, https://envirous.upnjatim.ac.id/index.php/envirous/article/view/108.