Rob Bowman in his book, “Putting Jesus In His Place” (PJIHP 2007 ) argues that there is no reason to believe that Scripture teaches the Son is not also the Source of creation, along with the Father, as expressed by Greek words that signal “source” such as EK (from).
“It is true that the New Testament never says that all things are “from” (ek) the Son. This particular wording occurs only a few times, however, in the entire New Testament with reference to all things in creation being from God or the Father (Rom. 11:36; 1 Cor. 8:6; 11:12; 2 Cor. 5:18). The absence of this wording with reference to Jesus is therefore too slender an argument from silence to prove any inferiority of the Son’s role in creation.” . PKIHP (Kindle 2102)
And his footnote reads:
 Some sort of “economic” distinction between the distinction between the roles of the Father and the Son (as well as of the Holy Spirit) in the work of Creation is consistent with both Scripture and the historic doctrine of the Trinity. All we are insisting here is that any such distinction falls short of implying that the Son performs an inferior role. Still, it does seem to us that the New Testament does not provide compelling evidence for hard and fast distinctions in the roles of the Father and the Son in creation.
How many times must Scripture teach that the Father is the “source” of “all things” before Rob will accept it?
In a Facebook forum, I said to Rob:
“And yes, John 5:19,30 is a losing proposition for you because Jesus himself denies doing anything of himself, or being the cause of divine works by his denial using AP[O]. 
Since “all things” (e.g. 1 Co 8:6) were made EK the Father, there are no “things” which the Son could have originated. That is simple math, and Jesus confirms this at John 5:19,30.”
As the ASV renders it:
19 Jesus therefore answered and said unto them, Verily, verily, I say unto you, The Son can do nothing of himself , but what he seeth the Father doing: for what things soever he doeth, these the Son also doeth in like manner.
Therefore, Jesus denies he has been the cause of divine works.
 BDAG in its entry for the preposition APO at John 5:19 and 30 gives the gloss,
5. to indicate cause, means, or outcome, from … e. to indicate responsible agents for someth., from, of