First, '...you can use which instead of that in restrictive clauses.'
Source: World Wide Words: Which versus that
I've lost the book that I was reading yesterday.
I've lost the book which I was reading yesterday
Source: AskOxford: Which or That?
which can introduce both restrictive relative clauses: The zebra which the lion picked on was clearly sick, and non-restrictive relative clauses: The zebra, which lives in southern Africa, is related to the horse.
Source: Dictionary of English - which <i>or</i> that
Second, given that there are two (different) subjects in your example sentence, which would be suitable.
Ex: Recording (of) and reporting of ....
which is not plural. It's used instead of that in restrictive clauses, especially when the word it modifies sits in a phrase or clause that is long or that houses more than one meaning - like your sentence.
All the best.