Lampert & Ball (1998)
Teaching, Multimedia, & Mathematics: Investigations of Real Practice
The book Teaching, Multimedia, & Mathematics: Investigations of Real Practice was written by Magdalene Lampert and Deborah Ball and published by Teachers College Press in 1998.
Also
APA
Lampert, M., & Ball, D. L. (1998). Teaching, multimedia, and mathematics: Investigations of real practice. New York: Teachers College Press.