Not from scripture alone. You really don't think that do you? The apostles taught no one who taught no one who taught no one?
Sola scriptura is not possible, it's not scriptural and it's not historical.
Who taught the Apostles and disciples? They passed down from Jesus what He taught them, what the Old Testament taught them and what the Holy Spirit further revealed to them to be passed on to the believers. Luke started out his gospel by saying:
Inasmuch as many have undertaken to compile an account of the things accomplished among us, just as they were handed down to us by those who from the beginning were eyewitnesses and servants of the word, it seemed fitting for me as well, having investigated everything carefully from the beginning, to write it out for you in consecutive order... (Luke 1:1-3)
Why is it not credible that the very same teachings that went on in that first century were written down, copied and passed out to all the assemblies that sprang up? Did every church group have a complete copy of all the writings? No, not all did, but eventually they got them and as the years went by they relied more and more upon these writings AS the word of God to ALL believers. Religious Jews nearly always had complete scrolls of the law and the prophets in their synagogues. They were memorized, taught, carefully copied and obeyed BECAUSE they recognized their authority. Why would the first Christians be any different? Hundreds of years after all the Apostles had died out, their teachings were STILL available in a form that could be verified by anyone who wanted to know the truth.
Sola scriptura is not possible, it's not scriptural and it's not historical.
On the contrary, Scripture consistently confirms the authority of its divinely-inspired writings. Elsie posted a comment a little ways back that demonstrates how frequently Jesus said, "It is written.." to verify what He spoke. The Apostles also did the same and the first Christians - the noble Bereans, for example - could confirm what was taught to them about Jesus by "searching the Scriptures (OT) to see if these things be so."
Perhaps it is the false definition of Sola Scriptura Catholics use that you are fighting against? God's word is God's word - I don't see how ANYTHING humanly devised could be more of an authority.
What TRUTHS are LEFT out of Scripture that are so VITALLY needed for man's salvation?