- Author: David Schaafsma
- Language: English
- Year: 2014
- Author: R. Kerry Turner Marije Schaafsma (eds.)
- Language: English
- Year: 2015
- Author: J.W. van der Kamp, N.-G. Asp, J. Miller Jones, G. Schaafsma
- Language: English
- Year: 2004
- Author: Polly Schaafsma (auth.)
- Language: English
- Year: 2013
- Author: R. J. Siezen J. Kok T. Abee G. Schaafsma (auth.) R. J. Siezen J. Kok T. Abee G. Schasfsma (eds.)
- Language: English
- Year: 2002
- Author: Curtis F. Schaafsma Carroll L. Riley
- Language: English
- Year: 1999
