Gaya APA
Perkembangan upah pekerja perkebunan 1991-1993 = wages trend of estate workers 1991-1993. (1996).
Jakarta:
[s.n.].
Gaya MLA
Perkembangan upah pekerja perkebunan 1991-1993 = wages trend of estate workers 1991-1993.
.
Jakarta:
[s.n.],
1996.
Buku.