Title: Laporan pendahuluan hasil survey sosial ekonomi di Propinsi D.I. Aceh, Sumatera Utara, Riau, Sumatera Barat, dan Kalimantan Barat
Description: Preliminary report of a socioeconomic survey of D.I. Aceh, Sumatera Utara, Riau, Sumatera Barat, and Kalimantan Barat for highway network purposes.