AZIM , Md. IMPACT OF COST STRUCTURES ON PROFITABILITY: INSIGHTS FROM A PANEL STUDY. Journal of SUB, [S. l.], v. 15, n. 1, p. 22–31, 2025. DOI: 10.63773/xpqsnc60. Disponível em: https://sub.edu.bd/journal/index.php/jsub/article/view/12. Acesso em: 13 mar. 2026.