How do I turn off app purchase permission?

[argon]

This was initially "Off" at the time of purchase, but I turned it on to make one purchase. That was two or three weeks ago, and now I cannot remember where that feature / particular sub-setting is located. I've been all over my settings page, thinking for sure that it would be located in the "iTunes and Apps" section, but I cannot find it -- anywhere.

I bought the "iPad for Dummies" 5-in-1 book, but despite its size & number pages and topics, it is not very helpful....

Thanks.

 

[J. A.]

It's in Settings - General - Restrictions.

 

[argon]

Got it -- thanks!

 

[J. A.]

You're welcome.