Pham, Dong Duy
Suhono, Agnes Hoki Briliana
Kaku, Nobuo
Masuda, Shuhei
Takakai, Fumiaki
Watanabe, Toru
Funding for this research was provided by:
Ministry of Land, Infrastructure, Transport, and Tourism (MLIT) of Japan
Article History
Received: 3 September 2020
Accepted: 30 December 2020
First Online: 14 January 2021
Compliance with ethical standards
:
: The authors declare that they have no competing interests.
: This manuscript is the original work of authors, which has not been previously published elsewhere.The manuscript reflects the authors’ own research and analysis in a truthful and complete manner.The manuscript properly credits the meaningful contributions of co-authors.The results are appropriately placed in the context of prior and existing research.All sources used are properly disclosed (correct citation).All the authors have been personally and actively involved in substantial work leading to the paper, and will take public responsibility for its content.