APA-ийн эшлэл(7 дахь хэвлэлт)

SINGH RAKESH. (2002). ECONOMIC ENVIRONMENT OF BUSINEESS A CASE STUDY APPROACH. SHROFF PUBLISHERS AND DISTRIBUTORS PVT LTD.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

SINGH RAKESH. ECONOMIC ENVIRONMENT OF BUSINEESS A CASE STUDY APPROACH. MUMBAI: SHROFF PUBLISHERS AND DISTRIBUTORS PVT LTD, 2002.

MLA -ийн эшлэл (9 дэх хэвлэлт)

SINGH RAKESH. ECONOMIC ENVIRONMENT OF BUSINEESS A CASE STUDY APPROACH. SHROFF PUBLISHERS AND DISTRIBUTORS PVT LTD, 2002.