Question: How much time is spent in writing per day by Department of Defense professionals?
Answer: “Respondents spent between 25% and 40% of a typical work day writing.” CL Davis and FF Stohrer. 1989. P. 207.
Title: “Annotated Bibliography of Research in the Teaching of English.” JD Marshall and RK Durst, Eds. Research in the Teaching of English (May 1990), 205-221.