Gaya APA

Jonker, J., Pennink, B. (2010). The Essence of Research Methodology; A Concise Guide for Master and PhD Students in Management Science . New York: Springer.

Gaya MLA

Jonker, Jan., Pennink, Bartjan. "The Essence of Research Methodology; A Concise Guide for Master and PhD Students in Management Science". New York: Springer, 2010. Text.