APA-ийн эшлэл(7 дахь хэвлэлт)

Kumar, V. (2013). Profitable Customer Engagement: Concepts, Metrics, and Strategies. SAGE Publications India Pvt. Ltd.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Kumar, V. Profitable Customer Engagement: Concepts, Metrics, and Strategies. New Delhi: SAGE Publications India Pvt. Ltd, 2013.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Kumar, V. Profitable Customer Engagement: Concepts, Metrics, and Strategies. SAGE Publications India Pvt. Ltd, 2013.