Volume 30, Issue 5, September and October 2018, Pages 247-253
10.22038/ijorl.2018.26701.1871
Tengku-Siti-Hajar Haryuna; Agustinus-Hamonangan-Winston Purba; Farhat Farhat; Widayat Alviandi
Volume 30, Issue 3, May and June 2018, Pages 167-170
10.22038/ijorl.2017.23203.1772
Sadegh Jafarzadeh; Mohammad Reza Golrokhian Sani
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