Olson, Everett C.
Morphological integration
University of Chicago Press, 1999
 Buku Teks
Baerman, Matthew
Morphological complexity
Cambridge University Press, 2017
 Buku Teks SO
Stump, Gregory
Morphological typology from word to paradigm
Cambridge University Press, 2013
 Buku Teks SO
Jones, Capers
Programming productivity
McGraw-Hill, 1986
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Schermerhorn, John R.
Management for productivity
John Wiley & Sons, 1993
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