What are the four sorts of human resources, according to your research paper?

What are the four sorts of human resources, according to your research paper?here is the structure of how it should consist it should be written for the literature Review Introduction- specify use of secondary data, mention, include hypothesis Literature review Data Set- Include graphs descriptive statistics, what adjustments did I make to data set, explain the data Business Relevance- Include recommendations why it is important to the business world Conclusion References I need them to do a formative presentation of it aswell