This issue available online on 15th January 2021 for the regular issue of January 2021. All articles in this issue (5 original research articles) were authored/co-authored by 9 authors from 3 countries (Indonesia, Malaysia, Vietnam).

This issue available online on 1st September 2020 for the regular issue of September 2020. All articles in this issue (5 original research articles) were authored/co-authored by 8 authors from 5 countries (Taiwan, Indonesia, Jordan, Korea, Vietnam).