Documents needed at POE on tourist visa

[humanbeing123]

My sis-in-law has a tourist visa for multiple entries valid for 10 years, she is coming to visit us for 1month to help me with my illness, she is married and employed in india. What all documents does she need to carry at the port of entry?
Thanks

 

[Triple Citizen]

Return ticket and credit cards and/or travelers cheques..

What all documents does she need to carry at the port of entry?

 

[tikutarzan]

You should read http://www.immihelp.com/visitor-visa/port-of-entry-usa.html

It explains in detail.