This link has been added because it summarizes the legend of Bucephalus and explains what he did when he first gained the trust of Bucephalus when other riders had failed to do so. It does reference Plutarch and Pliny the Elder near the top of the article.
This link provides extracts from Pliny the Elder and Arrian and their accounts of Bucephalus. The link provides an opportunity to pick out some key points of these extracts for Primary Source evidence about Bucephalus and Alexander.
A scene from the movie 'Alexander the Great' in which he tames Bucephalus, moving the horse to face the sun so that he can no longer see his own shadow.
This clip shows us how history portrays Bucephalus and Alexander as being one of the most iconic duos in history.
This webpage gives a very brief overview of Alexander and Bucephalus. There is no primary evidence which can be used for quotes.
This link was added because it is written by qualified historians. The page states that it was created in 2000 and last updated on 16 October 2016. The more recently a webpage has been updated, the more reliable the page will be because it has been reviewed.
It's reliable because this website is reviewed for education purposes in schooling
It's a Wikipedia entry and while anyone can edit these, they are most often accurate because sources are listed at the bottom of the page which then takes you to other webpages most often written by qualified people.