edited by Claude Frasson, Gilles Gauthier
Ablex, 1990
Buku Teks
Kubiszyn, Tom
John Wiley & Sons, 2003
Buku Teks
edited by Alick Elithorn and Ranan Banerji
North Holland, 1984
Buku Teks
Popham, W. James
Association for Supervision and Curriculum Developmen, 2001
Buku Teks
edited by Ben Du Boulay, David Hogg, Luc Steels
North-Holland, 1987
Buku Teks