Rashid Ameer, “Financial Constraints, Debt Overhang and Corporate Investment: A Panel Smooth Transition Regression Approach”, aamjaf, vol. 10, no. 2, pp. 55–80, Dec. 2014, Accessed: Jul. 27, 2025. [Online]. Available: https://ejournal.usm.my/aamjaf/article/view/aamjaf_vol10-no2-2014_4