What are the effects of global strategy on the performance of SMEs in developing countries

I need a literature review on the organizational performance and global strategy of SMEs in developing countries ( preferably Africa). The peer-reviewed resources should not be more than 5 years old. Additionally the emphasis should be on sustainability of SMEs in the developing countries.

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Small and medium enterprises (SMEs) are increasing –laying a crucial role in the international trade. Statistics obtained from the Organization for Economic Cooperation and Development (OECD) and other reliable sources indicate that SMEs now is responsible for a significant portion of the exports from the industrialized nations………………….