Kessels, J. W. M., Smit, C. A., & Keursten, P. (1996). The eight fields instrument: analysis framework for training effects (internal publication). (Publication)

Kessels, J. W. M., & Smit, C. A. (1996). Job analysis. In T. Plomp & D. P. Ely (Eds.), International Encyclopedia of educational technology (second, pp. 116–125). Cambridge: Elsevier Science Ltd. (Publication)

Kessels, J. W. M., Smit, C. A., & Keursten, P. (1996). Het acht velden instrument: analyse-kader voor opleidingseffecten. (Interne Publicatie). (Publication)