Questionnaire on employee welfare and social security measure - PhD thesis

I am pursing a PhD in management. For this, I am doing a survey on employee welfare and social security measures. In this regard, kindly help me to prepare a questionnaire which covers all amenities under the topic.

Kindly click on the links on the right side of the message. I found a questionnaire at https://www.citehr.com/256746-questi...-download.html
Also kindly see my post at https://www.citehr.com/265866-questi...-measures.html That contains some useful tips.
Also, please do some literature search to see what others have done, how and why that way. Unlike a Masters Thesis, a PhD thesis should add new information to the Knowledge Bank on the topic you will work on. If you want any more detail/help you can contact me by sending a Private Message. For example, read the paper at A Study on Labour Welfare Measures and Social Security on Selected Engineering Unit of Ahmadabad | Patel | IBMRD's Journal of Management & Research found by Googling at https://www.google.co.uk/search?sour....0.6f8GezhcXtw