Rahmawati, Silvi. “Analisis Kualitatif Logam Cd Pada Sungai JL. Kaligawe Raya”. Walisongo Journal of Chemistry 1, no. 2 (December 9, 2018): 91–95. Accessed December 8, 2025. https://journal.walisongo.ac.id/index.php/wjc/article/view/3108.