J. Addai-Asante, S. A. Nimo, and D. K. Obeng, “Firm Level Technical Efficiency between Foreign-Owned and Domestic-Owned Firms: Case Study of Pharmaceutical Manufacturing Industry in Ghana”, ASRJETS-Journal, vol. 36, no. 1, pp. 146–166, Oct. 2017, Accessed: Sep. 20, 2025. [Online]. Available: https://asrjetsjournal.org/American_Scientific_Journal/article/view/2860