Tohutoro APA (7th ed.)

Gupta, P. K., & Hira, D. S. (2012). Business Statistics (Latest ed.). S. Chand & Company.

Tohutoru Kātū Chicago (17th ed.)

Gupta, P. K., me D. S. Hira. Business Statistics. Latest ed. New Delhi: S. Chand & Company, 2012.

Tohutoro MLA (9th ed.)

Gupta, P. K., me D. S. Hira. Business Statistics. Latest ed. S. Chand & Company, 2012.