A Doctor of Philosophy is an academic degree that requires about four years of extensive study and research to earn. Receiving a PhD is an educational goal that many students strive for, as earning this degree may help them find a career that accomplishes their personal and professional goals.
Education in the United States is mainly provided by the public sector, with control and funding coming from three levels: state, local, and federal, in that order. The common requirements to study at a higher education level in United States will include your admissions essay (also known as the statement of purpose or personal statement), transcript of records, recommendation/reference letters, language tests
Online PhD Degree in Organization in USA
or search for similar programs here