Doctor of philosophy (ph.d.)
- Doctor of philosophy (phd.) in management
- Doctor of philosophy (phd.) in psychology
- Doctor of philosophy (phd.) in clinical psychology
- Doctor of philosophy (phd.) in bible exposition
- Doctor of philosophy (phd) in project engineering management
- Doctor of philosophy ph d in aviation
- Doctor of philosophy ph d in organization and management leadership
- Doctor of philosophy ph d in computer science
- Doctor of philosophy (phd.) in physics
- Doctor of philosophy (phd.) in economics
- Doctor of philosophy (phd.) in education
- Doctor of philosophy phd
- Doctor of philosophy phd degree
- Doctor of philosophy in technology management (phd.tm.)
- Define doctor of philosophy phd