Nakhalin Phounsavath; Vannasinh Souvannasouk; Khamphisay Khammingsavath; Phoutsavath Phanthavong; Chantiem Silalai; Bualaphanh Mingkhuan; Odeth Sihavong; Salongxay Fongsamouth. Circular bioeconomy valorization of coffee bark residues: Soil chemical transformation and yield enhancement in highland arabica coffee systems. Maejo Int. J. Energ. Environ. Comm. or MIJEEC 2025, 7, 19-26.