Bukhari, Waqar Ali Ather, et al. “Nexus Between Financial Leverages, Operating Liquidity & Firm’s Performance: A Panel Data Analysis of Pakistan’s Cement Industry”. The Journal of Contemporary Issues in Business and Government, vol. 27, no. 2, Apr. 2021, pp. 1806-13, https://cibgp.com/index.php/1323-6903/article/view/1084.