อ้างอิง
Adam, H., & Dickey, F. G. (1978). Basic principle of supervision. New Delhi: Eurasia Publishing House. Agnew, T., Vaught, C., Getz, H.
Good, C. V. (1973). Dictionary of education. New York: McGraw–Hill Book.
Thomas H. Briggs and Justman Joseph. (1995). Improving instruction through Supervision. New York: McMillan.