Purdue Online Writing Lab | Argumentative Essays
The argumentative essay is a genre of writing that requires the student to investigate a topic; collect, generate, and evaluate evidence; and establish a position on the topic in a concise manner.
Please note: Some confusion may occur between the argumentative essay and the expository essay. These two genres are similar, but the argumentative essay differs from the expository essay in the amount of pre-writing (invention) and research involved. The argumentative essay is commonly assigned as a capstone or final project in first year writing or advanced composition courses and involves lengthy, detailed research.
https://owl.purdue.edu/owl/general_writing/academic_writing/essay_writing/argumentative_essays.html
UC Berkeley Student Learning Center | Suggestions for Developing Argumentative Essays
https://slc.berkeley.edu/writing-worksheets-and-other-writing-resources/suggestions-developing-argumentative-essays
The Writing Center | University of North Carolina at Chapel Hill
This handout will define what an argument is and explain why you need one in most of your academic essays.
https://writingcenter.unc.edu/tips-and-tools/argument/