Gaya APA

Rata-rata upah pekerja perkebunan 1980-1982 = Average wage of estate workers 1980-1982. (1983). Jakarta: [s.n.].

Gaya MLA

Rata-rata upah pekerja perkebunan 1980-1982 = Average wage of estate workers 1980-1982. . Jakarta: [s.n.], 1983. Buku.