Ummi Athiyah Institut Teknologi Telkom Purwokerto Indonesia
Arif Wirawan Muhammad Department of Informatics, Institut Teknologi Telkom Purwokerto Jl DI Pandjaitan 128 Karangreja, Banyumas 53147, Indonesia
c Fakulti Sains Komputer dan Teknologi Maklumat, Universiti Tun Hussein Onn Malaysia Jl Delta 6 Parit Raja, Johor, 86400, Malaysia Malaysia
Ahmad Azhari Department of Informatics, Universitas Ahmad Dahlan Jl Ringroad Selatan, Tamanan, Banguntapan, Bantul, Yogyakarta 55166, Indonesia
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