Gaya APA

Rata-rata upah pekerja perkebunan 1981-1983 = Average wage of estate workers 1981-1983. (1985). Jakarta: BPS.

Gaya MLA

Rata-rata upah pekerja perkebunan 1981-1983 = Average wage of estate workers 1981-1983. . Jakarta: BPS, 1985. Buku.