This issue has been available online since 4th June 2025 for the common issue of April 2025. All articles in this issue (6 original research articles) were authored/co-authored by 25 authors from 3 countries (Australia, Indonesia and Korea)

This issue has been available online since 31st January 2025 for the common issue of December 2024. All articles in this issue (6 original research articles) were authored/co-authored by 25 authors from 2 countries (Indonesia and Korea)

This issue has been available online since 31st January 2025 for the common issue of August 2024. All articles in this issue (6 original research articles) were authored/co-authored by 29 authors from 2 countries (Indonesia and Korea)

This issue has been available online since 1st April 2024 for the common issue of April 2024. All articles in this issue (6 original research articles) were authored/co-authored by 21 authors from 3 countries (Australia, Indonesia and Japan)

This issue has been available online since 17th December 2022 for the common issue of December 2022. All articles in this issue (6 original research articles) were authored/co-authored by 24 authors

This issue has been available online since 31st August 2022 for the common issue of August 2022. All articles in this issue (6 original research articles) were authored/co-authored by 23 authors from 2 countries (Indonesia and Japan)

This issue has been available online since 10th August 2022 for the common issue of April 2022. All articles in this issue (6 original research articles) were authored/co-authored by 22 authors from 4 countries (Indonesia, Malaysia, United States, and Japan)

This issue has been available online since 1st December 2021 for the regular issue of December 2021. All articles in this issue (6 original research articles) were authored/co-authored by 21 authors from 3 countries (Indonesia, Australia and Japan)

This issue has been available online since 1st August 2021 for the regular issue of August 2021. All articles in this issue (6 original research articles) were authored/co-authored by 24 authors from 3 countries (Indonesia, Croatia and Taiwan)

This issue has been available online since 31th March 2021 for the regular issue of April 2021. All articles in this issue (6 original research articles) were authored/co-authored by 17 authors from 3 countries (Indonesia, Malaysia and South Korea)

This issue has been available online since 31th December 2020 for the regular issue of December 2020. All articles in this issue (6 original research articles) were authored/co-authored by 16 authors from 2 countries (Indonesia and Japan).

This issue has been available online since 31th August 2020 for the regular issue of August 2020. All articles in this issue (5 original research articles) were authored/co-authored by 18 authors from 1 countries (Indonesia).

This issue has been available online since 31th April 2020 for the regular issue of April 2020. All articles in this issue (6 original research articles) were authored/co-authored by 13 authors from 2 countries (Indonesia and India).