Nyamanga, E. A. A. (2013). The effects of accidents on employee productivity: A case of East African portland cement company LTD. Daystar University.
Lua i Stíl Chicago (17ú heag.)Nyamanga, Eric Achoki A. The Effects of Accidents on Employee Productivity: A Case of East African Portland Cement Company LTD. Nairobi, Kenya: Daystar University, 2013.
Lua MLA (9ú heag.)Nyamanga, Eric Achoki A. The Effects of Accidents on Employee Productivity: A Case of East African Portland Cement Company LTD. Daystar University, 2013.
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