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This issue has been available online for the regular issue of Vol. 5 No. 3, 2025 period. All accepted articles in this issue were authored/co-authored from  2 country (Indonesia and Angola).

This issue has been available online for the regular issue of Vol. 5 No. 2, 2025 period. All accepted articles in this issue were authored/co-authored from  1 country (Indonesia).

This issue has been available online for the regular issue of Vol. 4 No. 6, 2024 period. All accepted articles in this issue were authored/co-authored from  4 countries (Indonesia, Malaysia, Angola, Nigeria).

This issue has been available online for the regular issue of Vol. 4 No. 6, 2024 period. All accepted articles in this issue were authored/co-authored from  1 country (Indonesia).

This issue has been available online for the regular issue of Vol. 4 No. 5, 2024 period. All accepted articles in this issue were authored/co-authored from  2 countries (Indonesia, Nigeria).

This issue has been available online for the regular issue of Vol. 4 No. 4, 2024 period. All accepted articles in this issue were authored/co-authored from  2 countries (Indonesia, Nigeria).

This issue has been available online for the regular issue of Vol. 4 No. 3, 2024 period. All accepted articles in this issue were authored/co-authored from  2 countries (Indonesia, Nigeria).

This issue has been available online for the regular issue of Vol. 4 No. 2, 2024 period. All accepted articles in this issue were authored/co-authored from  3 countries (Indonesia, Nigeria, South Africa).

This issue has been available online for the regular issue of Vol. 4 No. 1, 2024 period. All accepted articles in this issue were authored/co-authored from  3 countries (Indonesia, Nigeria, South Africa).

This issue has been available online for the regular issue of Vol. 3 No. 6, 2023 period. All accepted articles in this issue were authored/co-authored from  4 countries (Philippines, Zambia, USA, Indonesia).

This issue has been available online for the regular issue of Vol. 3 No. 5, 2023 period. All accepted articles in this issue were authored/co-authored from  4 countries (Philippines, Zambia, USA, Indonesia).

This issue has been available online for the regular issue of Vol. 3 No. 4, 2023 period. All accepted articles in this issue were authored/co-authored from 3 countries Indonesia, (Netherlands, Nigeria).

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This issue has been available online for the regular issue of Vol. 3 No. 3, 2023 period. All accepted articles in this issue were authored/co-authored from  2 countries (Zambia, Indonesia).

This issue has been available online for the regular issue of Vol. 3 No. 2, 2023 period. All accepted articles in this issue were authored/co-authored from  5 countries (Zambia, Nigeria, Netherlands, USA, Indonesia).

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This issue has been available online for the regular issue of Vol. 3 No. 1, 2023 period. All accepted articles in this issue were authored/co-authored from  4 countries (Nigeria, Indonesia, Nepal, Netherland).

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This issue has been available online for the regular issue of Vol. 2 No. 2, 2022 period. All accepted articles (5 articles) in this issue were authored/co-authored from  2 countries (Nigeria, India).

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This issue has been available online for the regular issue of Vol. 2 No. 1, 2022 period. All accepted articles (5 articles) in this issue were authored/co-authored from  3 countries (Nigeria, Indonesia, Netherlands).

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This issue has been available online for the regular issue of Vol. 1 No. 2, 2021 period. All accepted articles (5 articles) in this issue were authored/co-authored from  3 countries (Nigeria, Indonesia, Netherlands).

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This issue has been available online since 1st June 2021 for the regular issue of the June 2021 period. All accepted articles (5 articles) in this issue were authored/co-authored from  3 countries (Nigeria, Indonesia, Netherlands).

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