Ogbonnia, A. A., I. N. Maryann, and E. Ikenna. “Investment Spikes and Firm Profitability”. International Journal on Economics, Finance and Sustainable Development, Vol. 5, no. 12, Dec. 2023, pp. 41-51, https://journals.researchparks.org/index.php/IJEFSD/article/view/5022.