Gaya APA
Ula, C. (2014).
Kajian Standard Operating Procedures pada Dinas Area Control Centre 1 di Jakarta Air Traffic Service Centre .
Tangerang:
STPI Curug.
Gaya MLA
Ula, Chairul.
"Kajian Standard Operating Procedures pada Dinas Area Control Centre 1 di Jakarta Air Traffic Service Centre".
Tangerang:
STPI Curug,
2014.
Skripsi.