APA-ийн эшлэл(7 дахь хэвлэлт)

Wanjala, A. N. (2006). The effect of counterfeit products on company sales/ revenue of permit holder manufacturing firms in Nairobi (Kenya). Daystar.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Wanjala, Anne Nelima. The Effect of Counterfeit Products on Company Sales/ Revenue of Permit Holder Manufacturing Firms in Nairobi (Kenya). Nairobi: Daystar, 2006.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Wanjala, Anne Nelima. The Effect of Counterfeit Products on Company Sales/ Revenue of Permit Holder Manufacturing Firms in Nairobi (Kenya). Daystar, 2006.