Reviewer

Muhammad Akhir , Islamic University of North Sumatra Indonesia, [Google Scholar] [ID Sinta]

N.J.G Kaptein,(Leiden University, Netherlands) (Scopus)[Google Scholar]
Michael Feener, (National University of Singapore, Singapore) (Scopus) [Google Scholar]
Rohit Kumar Verma, Internasional Medical University, Malaysia [Scopus] [Google Scholar)

Riswan Hadi, Isaniah University of North Sumatra Indonesia, [Google Scholar] [ID Sinta]