Sensus ekonomi: statistik angkutan jalan raya berbadan hukum 1985 = economic census road transpor statisticcs, 1985 incorporated enterprises

Sensus ekonomi= economic census 1986: daftar nama dan alamat perusahaan angkutan, penggudangan dan komunikasi ber badan hukum, Januari 1986 (bagian 2)= directory of transport, storage and communication January 1986, incorporated enterprises

Sensus ekonomi 1986: statistik pembuatan film, distributor film dan jasa perekaman, berbadan hukum 1985 = economic census = filmproducers, film distributors and recording services

Sensus ekonomi 1986: statistik usaha rumahtangga pertambangan dan penggalian 1986= economic census: mining and quarrying statistiocs, 1986 (unincorporated enterprises)

Indikator ekonomi Sumatra Utara 2006