የጨረታ ማስታወቂያ በሀገር አቀፍ የትምህርት ምዘናና ፈተናዎች ኤጀንሲ የ2013 በጀት አመት ከታህሳስ ወር/2013 ዓ.
The Illinois Public Health Institute study explored district and school-level experiences through interviews conducted between December 2011 and April 2012.