Napitupulu, Beckham, and Aidatul Fitriyah. “Urban Gold Mining Credit: Designing a Carbon Credit Mechanism for Gold Recovery from Electronic Waste”. Sustainable Urban Development and Environmental Impact Journal 3, no. 2 (August 28, 2026). Accessed August 28, 2026. https://journal-iasssf.com/index.php/SUDEIJ/article/view/3479.