EFFECTS OF EXTENDED VALUE CHAIN ACTIVITIES ON PROFIT EFFICIENCY IN MALAYSIAN PLANTATION COMPANIES. Malaysian Management Journal, [S. l.], v. 27, p. 109–134, 2023. DOI: 10.32890/mmj2023.27.5. Disponível em: https://www.educationmalaysia.co.uk/index.php/mmj/article/view/17788. Acesso em: 10 nov. 2025.