Open Access

This is an Open Access journal distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) which permits unrestricted distribution, and reproduction in any medium, provided the original work is properly cited.

PHWR
Jan 29, 2026 Vol.19 No.4
pp. 173~231

Most Keyword ?

What is Most Keyword?

  • It is the most frequently used keyword in articles in this journal for the past two years.

PHWR