The introduction is, in many respects, the conclusion written in reverse: start by generally introducing the larger topic, then orient the reader in the area you’ve focused on, and finally, supply the thesis statement. Avoid repeating exact phrases that you already used in the conclusion.
Although it may seem counter-intuitive, writing your introduction first may be more difficult to accomplish than starting with the meat of your paper. Starting by writing the main points (focusing on supporting your thesis) allows you to slightly change and manipulate your ideas and commentary.
If you find one really awesome book or journal that fits your topic perfectly, try looking in the works cited/bibliography/reference list at the end of it. This should contain many more books and journals that are about your topic as well.
Research paper writing consists of several stages. The first stage consists of choosing a relevant topic and making a thesis statement that shows the objectives and goals of your investigation. It is followed by the research and experimental stage during which a student studies the matter, works with relevant literature, and collects data for the written part of this project. Then you have to write the paper itself. The last stage is less stressful as you already have all the necessary information and only need to analyze and present it in a proper manner, however, it requires knowing and following the basic principles of academic writing.