Gaya APA
Study ofIndonesia's Economically Active Population. (1980).
Yogyakarta:
UGM.
Gaya Chicago
Study ofIndonesia's Economically Active Population.
.
Yogyakarta:
UGM,
1980.
Buku.
Gaya MLA
Study ofIndonesia's Economically Active Population.
.
Yogyakarta:
UGM,
1980.
Buku.
Gaya Turabian
Study ofIndonesia's Economically Active Population.
Yogyakarta:
UGM,
1980.
Buku.