All articles in this issue were authored/co-authored by 33 authors from 4 countries (Indonesia, Sudan, Nigeria, Libya)

All articles in this issue were authored/co-authored by 28 authors from 2 countries (Indonesia and Turkey)

All articles in this issue were authored/co-authored by 27 authors from 2 countries (Indonesia and Malaysia)

All articles in this issue were authored/co-authored by 27 authors from 2 countries (Indonesia, and Pakistan)

All articles in this issue were authored/co-authored by 27 authors from 3 countries (Indonesia, United States and Egypt)

All articles in this issue were authored/co-authored by 24 authors from 2 countries (Indonesia and Sudan)