Hanis Adiela Ibrahim and Abdul Hadi Zulkafli 2023. THE SPEED OF ADJUSTMENT TOWARDS OPTIMAL CAPITAL STRUCTURE: DO OWNERSHIP CONCENTRATION AND BOARD DIVERSITY MATTER?. International Journal of Business and Society. 24, 1 (Apr. 2023), 440–458. DOI:https://doi.org/10.33736/ijbs.5627.2023.