APA-čujuhus (7. p.)
Kafele, B. K. (2015). Principal 50: Critical leadership questions for inspiring schoolwide excellence. ASCD.
Chicago-čujuhus (17. p.)
Kafele, Baruti K. Principal 50: Critical Leadership Questions for Inspiring Schoolwide Excellence. Alexandria, Virginia: ASCD, 2015.
MLA-čujuhus (9. p.)
Kafele, Baruti K. Principal 50: Critical Leadership Questions for Inspiring Schoolwide Excellence. ASCD, 2015.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.