ວັນນະຍຸດ: Difference between revisions
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ແຖວ 49:
* Yip, Moira. (2002). ''Tone''. Cambridge textbooks in linguistics. Cambridge: Cambridge University Press. ISBN 0-521-77314-8 (hbk), ISBN 0-521-77445-4 (pbk).
== ແຫຼ່ງຂໍ້ມູນອື່ນ ==
* [http://wals.info/feature/13?tg_format=map
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