SAHLU , A. .; DINKU, A. . Construction site wastes (non-physical) categorization in Addis Ababa based on lean concept . Zede: Journal of Ethiopian Engineers and Architects የኢትዮጵያ መሐንዲሶችና አርክቴክቶች መጽሔት, [S. l.], v. 39, p. 31–43, 2023. Disponível em: https://ejol.aau.edu.et/index.php/ZEDE/article/view/6551. Acesso em: 10 apr. 2026.