Universitas Pembangunan Nasional "Veteran" Yogyakarta, (SINTA: http://sinta2.ristekdikti.go.id/authors/detail?id=6097282&view=overview, Google Scholar: https://scholar.google.co.id/citations?user=r7Erc2UAAAAJ&hl=id&oi=ao) Indonesia
Azhari SN Department of Computer Science and Electronics, FMIPA UGM, Yogyakarta, Indonesia