This issue has been available online since 28th July 2021 for the regular issue of July 2021. All articles in this issue (5 original research articles) were authored/co-authored by 14 authors from 3 countries (Indonesia, Brunei, and South Africa)



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Table of Contents
Ulinsa Ulinsa
, Rinaldi Rinaldi
, Vincent Oringo
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Afdalil Aflika Putra
, Wahyudi Rahmat
, Ricci Gemarni Tatalia
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Endang Sri Maruti
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Yessy Yunanda
, Wahyudi Rahmat
, Samsiarni Samsiarni
, Ali Al Bukhari Bin Mhd. Rifai
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Rio Rinaldi
, Risa Yulisna
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