Indonesia. Syiah Kuala University. (1972). Economic contour study of Sumatra (Aceh and North Sumatera). Economic and Social Research Institute, Syiah Kuala University.
芝加哥风格引文Indonesia. Syiah Kuala University. Economic Contour Study of Sumatra (Aceh and North Sumatera). Darussalan, Aceh: Economic and Social Research Institute, Syiah Kuala University, 1972.
MLA引文Indonesia. Syiah Kuala University. Economic Contour Study of Sumatra (Aceh and North Sumatera). Economic and Social Research Institute, Syiah Kuala University, 1972.
警告：这些引文格式不一定是100％准确.