This issue available online on January 2022 for the regular issue of January 2022. All articles in this issue (5 original research articles) were authored/co-authored by 6 authors from 3 countries (Indonesia, Jordan, and Saudi Arabia).

This issue available online on December 2021 for the regular issue of December 2021. All articles in this issue (5 original research articles) were authored/co-authored by 13 authors from 4 countries (Indonesia, Palestine, Bangladesh, and Vietnam).

This issue available online on September 2021 for the regular issue of September 2021. All articles in this issue (5 original research articles) were authored/co-authored by 16 authors from 3 countries (Indonesia, Spain, and Taiwan).

This issue available online on 1st May 2021 for the regular issue of May 2021. All articles in this issue (5 original research articles) were authored/co-authored by 13 authors from 4 countries (United States, China, Indonesia, Taiwan).

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 December 2020 for the regular issue of December 2020. All articles in this issue (1 original research articles) were authored/co-authored by 1 authors from 1 countries (Saudi Arabia).

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).