THARAVANIJ, P. Degree of Operating Leverage (DOL), Operating Profit Margin and Growth. NIDA Business Journal, Bangkok, Thailand, n. 28, p. 26–50, 2022. Disponível em: https://so10.tci-thaijo.org/index.php/NIDABJ/article/view/55. Acesso em: 9 apr. 2025.