Okada, Hideo. 1991. Illustrations of the IPA: Japanese. Journal of the International Phonetic Association 21. 94–96. Cambridge University Press.
@article{jpn_okada1991,
author = {Okada, Hideo},
journal = {Journal of the International Phonetic Association},
number = {2},
pages = {94–96},
publisher = {Cambridge University Press},
title = {Illustrations of the IPA: Japanese},
volume = {21},
year = {1991}
}