Susanti, Yuni
Tokunaga, Takenobu
Nishikawa, Hitoshi
Text and Data Mining valid from 2020-05-11
Version of Record valid from 2020-05-11
Article History
Received: 8 October 2018
Accepted: 14 April 2020
First Online: 11 May 2020
Competing interests
: The authors declare that they have no competing interests.