https://www.noor-book.com/tag/%D8%A5%D8%AF%D8%A7%D8%B1%D8%A9-%D8%A7%D9%84%D8%AC%D9%88%D8%AF%D8%A9-%D8%A7%D9%84%D8%B4%D8%A7%D9%85%D9%84%D8%A9

https://books.google.iq/books/about/%D9%85%D8%A8%D8%A7%D8%AF%D8%A6_%D8%A7%D9%84%D8%A5%D8%AF%D8%A7%D8%B1%D8%A9.html?hl=ar&id=DvcoDwAAQBAJ&redir_esc=y#v=onepage&q&f=false

https://www.chegg.com/textbooks/fundamentals-of-human-resource-management-5th-edition-9780134740218-0134740211

https://www.pearson.com/se/Nordics-Higher-Education/subject-catalogue/business-and-management/torrington-human-resource-management-11e.html