I want to investigate The impact of exchange rate fluctuation on oil prices: Evidence from countries that export oil: Angola, Nigeria, and Algeria. What is the best name for my topic? all my variables come stationary after the first difference and the model appropriate is the fixed effect model according to the Hausman test result, which other model should I conduct? I would like an explanation of the steps to write this paper like explaining clearly what should do be the first part and what I should put inside, until the conclusion of my paper, what kind of test need to do in ststa according to my first results in data? because are three countries I would to know if I will analyse them together no need to analyze them one by one. Please help me with more explanation for my paper I need a writing guide for this research. Thank you