This issue has been available online since June 2022 for the regular issue of June 2022. All articles in this issue (6 original research articles) were authored/co-authored by 19 authors from 4 institutions from 4 countries (Taiwan, Philippines, Indonesia, Singapore), i.e, Departement of Industrial and Systems Engineering (Taiwan), Northwestern University (Philippines), UPI YAI University (Indonesia), National University of Singapore (NUS) (Singapore).

Published: 2022-05-30

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