Gaya APA
Wardhani, S.
(2005).
Introduction to Airport Engineering
.
Yogyakarta:
Biro Penerbit Teknik Sipil.
Gaya MLA
Wardhani, Sartono.
"Introduction to Airport Engineering".
Yogyakarta:
Biro Penerbit Teknik Sipil,
2005.
Text.