APA-čujuhus (7. p.)
Lekhi, R., & Kaur, C. (2008). Business economics: BBA 3rd semester. Kalyani Publishers.
Chicago-čujuhus (17. p.)
Lekhi, R.K, juo Charanjit Kaur. Business Economics: BBA 3rd Semester. Kolkata: Kalyani Publishers, 2008.
MLA-čujuhus (9. p.)
Lekhi, R.K, juo Charanjit Kaur. Business Economics: BBA 3rd Semester. Kalyani Publishers, 2008.
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