Wulandari, Retno, Nabila Qothrunnada Zulfa, Muanda Afifah, and Evita Tri Andini. “Utilization of Dry Battery Waste Carbon Rod for Whiteboard Marker Ink”. International Journal of Advanced Multidisciplinary 4, no. 2 (July 11, 2025): 254–261. Accessed August 3, 2025. https://greenpub.org/IJAM/article/view/916.