You can use the paper by Vorhies and Mirgan for the enterprise performance. The scale for performance is at the end.

http://abufara.com/abufara.net/images/abook_file/Benchmarking%20Marketing%20Capabilities%20for%20Sustainable%20Competitive%20Advantage.pdf

http://journals.ama.org/doi/abs/10.1509/jmkg.69.1.80.55505

http://ir.knust.edu.gh/bitstream/123456789/7747/1/NANCY%20QUANSAH.pdf

http://www.emeraldinsight.com.sci-hub.cc/doi/abs/10.1108/00483481111106101

Thank you very much for all your assistance they are really helpful to me 

Follow Nick Bontis studies, He has constructive work on Human capital. His questionnaire are also supportive.

Dear Waseem barkat Baloch 

I really tried alot to find Nick Bontis questionnaire but I could not find. If you could help me find it I will be thankful to to you.

Regards

for human capital and HR practices you can also refer research article :

Structure of Human Capital Enhancing

Human Resource Management Practices in India

citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.688.4&rep...

by M Birasnav - ‎2009 -

For high-performance HR practices questionnaire, please, download attached article.

For human capital and organizational performance, please download attached article.

Hope this helps.