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Vol. 8 No. 1 (2021): June 2021
Available online since 27th June, 2021
This issue has been available online since 27th June, 2021. All articles in this issue (10 original research articles) were authored/co-authored by 34 authors from 7 countries (Indonesia, Kazakhstan, Nigeria, South Africa, China, Thailand, Malaysia).
Published:
2021-06-27













