Thumbi, M. P. (2001). Small enterprises management: A practical guide... Mwalimu.
Lua i Stíl Chicago (17ú heag.)Thumbi, Muigai P. Small Enterprises Management: A Practical Guide... Nairobi: Mwalimu, 2001.
Lua MLA (9ú heag.)Thumbi, Muigai P. Small Enterprises Management: A Practical Guide... Mwalimu, 2001.
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