Warta Ardhia: Jurnal Perhubungan Udara | Air Transportation Research and Development Center. Cambridge University Press.
Chicago-čujuhus (17. p.)Warta Ardhia: Jurnal Perhubungan Udara | Air Transportation Research and Development Center. Cambridge University Press.
MLA-čujuhus (9. p.)Warta Ardhia: Jurnal Perhubungan Udara | Air Transportation Research and Development Center. Cambridge University Press.
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