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Kota medan,
Sumatera utara
INDONESIA
Publisher :
Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (123.517 KB) | DOI: 10.47006/er.v2i2.1722
Publisher :
Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (204.87 KB) | DOI: 10.47006/er.v2i2.1751