Sharma, B., Prasad, D. R., & Satyanarayana P. (1983). Research methods in social sciences. Sterling Publishers.

Sharma, B.A.V, D. Ravindra Prasad, and Satyanarayana P. Research Methods in Social Sciences. New Delhi: Sterling Publishers, 1983.

Sharma, B.A.V, et al. Research Methods in Social Sciences. Sterling Publishers, 1983.