Khan, M. S. (1990). Educational Research. Ashish Publishing House.
Cita Chicago (17th ed.)Khan, Mohd. Sharif. Educational Research. New Delhi: Ashish Publishing House, 1990.
Cita MLA (9th ed.)Khan, Mohd. Sharif. Educational Research. Ashish Publishing House, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.