Languages homework help. Can you see if you can do this again? Instruction is that: 1. Is from a credible source perhaps from a professor at a reputable university. Use the Writing Style Guide which is accessed under Resources. There is a section on Identifying Credible and Reliable Sources on page 16 that you should use as your guide to identify credible videos.2. Does a good job at clarifying some of the concepts regarding pricing strategies in marketing from the background materials. Thanks