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Azharuddin Google Scholar
Kartina Pakpahan Google Scholar
Sonya Airini Batubara Google Scholar
Immanuel SimanjuntakGoogle Scholar
Suhaila Zulkifli Google Scholar
Azharuddin Google Scholar
Kartina Pakpahan Google Scholar
Sonya Airini Batubara Google Scholar
Immanuel SimanjuntakGoogle Scholar
Suhaila Zulkifli Google Scholar