AUTHOR=Siwawa Vincent TITLE=Assessing waste management performance in smart cities through the ‘Zero Waste Index’: case of African Waste Reclaimers Organisation, Johannesburg, South Africa JOURNAL=Frontiers in Sustainable Cities VOLUME=Volume 7 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/sustainable-cities/articles/10.3389/frsc.2025.1449868 DOI=10.3389/frsc.2025.1449868 ISSN=2624-9634