Tanggung jawab hukum kantor kesehatan bandar udara terhadap kelayakan awak pesawat ditinjau berdasarkan hukum kesehatan: studi: pengawasan penggunaan narkotika oleh awak pesawat di Bandar Udara Halim Perdana Kusuma = Responsibilities of airport health office against flight crew qualification based on health law: study: supervision of use of narcotics used flight crew in Airport Halim Perdana Kusuma