Methammem, Faten. 2020. “Formal Versus Informal Training & Tacit Versus Explicit Knowledge Sharing: What Matters More for the Entrepreneurially Oriented Firms?”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 52 (2):104-35. https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/11404.