Gaya APA
Alexander, L.G. (1975).
Developing Skills .
Yogyakarta:
Kanisius.
Gaya Chicago
Alexander, L.G.
Developing Skills.
Yogyakarta:
Kanisius,
1975.
Buku.
Gaya MLA
Alexander, L.G.
Developing Skills.
Yogyakarta:
Kanisius,
1975.
Buku.
Gaya Turabian
Alexander, L.G.
Developing Skills.
Yogyakarta:
Kanisius,
1975.
Buku.