Well, let me help you:
Firstly it is important to note that the four gospels of the Bible are the best sources we have for knowledge about Christ. Still there are some other fragmentary notes which may help us to establish who Jesus was, and one of them specifically points out that Christ was viewed as divine by his followers.
The Roman known as Pliny the Younger wrote to Emperor Traian about 112 AD that "Christians sing songs of praise to Christ as to a god".
The Jewish historian Josefus wrote about 90 AD that Jesus was called the Messiah (Antiquitates 20.200), and also that Christians believed Jesus to have lived a sinless life, that he died on the cross, that his followers had not quit believing in him and that they saw him alive three days after his death, and hence that he was thought to be the Messiah (Antiquitates 18.63-64).
Tacitus wrote in his Annals (15.44.4) that Christ was crucifed and that the Christians had a deadly superstition which was getting increasingly popular.
All these sources deal with Jesus as the crusifed Christ, and Pliny t.y. even claims that Christians viewed Christ as God.
So, yes, there are sources outside of the Bible which claim Jesus' divinity.
Best,
Disippelen