morpheme
morfeem
olemus
ISO 4:
vähim tähenduslik keeleüksus
ülevaateid
http://www.unizd.hr/portals/36/kolegiji/morphology/morphology%203.pdf
http://www.mathcs.duq.edu/~packer/Courses/Psy598/Ling-Morphology.pdf
https://en.wikipedia.org/wiki/Morpheme
https://en.wikipedia.org/wiki/Bound_and_free_morphemes
https://en.wikipedia.org/wiki/Content_morpheme
https://en.wikipedia.org/wiki/Allomorph
https://en.wikipedia.org/wiki/Cranberry_morpheme
http://repository.ut.ac.id/4243/1/BING4316-M1.pdf
https://studfile.net/preview/5200797/
https://www.scribd.com/document/257277798/List-of-English-Morphemes