Gaya APA

Jakarta, B, P, S. (1989). Rata rata upah pekerja perkebunan 1986-1988 = average wage of estate workers 1986-1988 . Jakarta: [s.n.].

Gaya MLA

Jakarta, BIRO, Pusat, Statistik,. "Rata rata upah pekerja perkebunan 1986-1988 = average wage of estate workers 1986-1988". Jakarta: [s.n.], 1989. Buku.