Gaya APA

CHECKLAND, P., Poulter, J. (2006). LEARNING FOR ACTION: A Short Definitive Account Of Soft Systems Methodology ANd Its Use For Practitioners, Teachers And Students . Inggris: John Wiley & Sons Ltd.

Gaya MLA

CHECKLAND, Peter., Poulter, John. "LEARNING FOR ACTION: A Short Definitive Account Of Soft Systems Methodology ANd Its Use For Practitioners, Teachers And Students". Inggris: John Wiley & Sons Ltd, 2006. Textbook.