edited by J. C. M. M Moonen, H.E. Wuite-Harmsma
North-Holland, 1984
Buku Teks
American Association for the Advancement of Science,, 1974
Buku Teks
Antje Barabasch
Springer, 2012
eBooks
Apps, Jerold W., author
Jossey-Bass , 1985
Buku Teks
editor, Jerry Mintz
Macmillan, 1994
Buku Referensi