Cita APA (7th ed.)

Indonesia. Syiah Kuala University. (1972). Economic contour study of Sumatra (Aceh and North Sumatera). Economic and Social Research Institute, Syiah Kuala University.

Cita Chicago (17th ed.)

Indonesia. Syiah Kuala University. Economic Contour Study of Sumatra (Aceh and North Sumatera). Darussalan, Aceh: Economic and Social Research Institute, Syiah Kuala University, 1972.

Cita MLA (9th ed.)

Indonesia. Syiah Kuala University. Economic Contour Study of Sumatra (Aceh and North Sumatera). Economic and Social Research Institute, Syiah Kuala University, 1972.