US National Center for Education Statistics Reports:
A. “Revenues and Expenditures for Public Elementary and Secondary School Districts: School Year 2013-14 (Fiscal Year 2014)” by Stephen Q. Cornman (NCES 2016-303, February 2017, .pdf format, 61p.).
B. “Instructional Time for Third- and Eighth-Graders in Public and Private Schools: School Year 2011–12,” by Kathleen Mulvaney Hoyer and Dinah Sparks (NCES 2017076, February 2017, .pdf format, 21p.).
