lol u will need a visa for that too and a acceptance letter...if u have a bachelors then ur chances of visa rejection will increase exponentially i guess....
lol acceptance letter is from college school university that they will give u admission that has nothing to do with visa. Visa is giving by canadian government and depends on various factors. colleges can give admission to any tom dick or harry but visa is not given so easily they check ur background ,check if u have enough funds to pay for ur education and living expense check if ur really interested in studies etc.....