Sembiring, I. (2002). Negeri Bayangan: Terrorist free. Galang Press.
芝加哥风格引文Sembiring, Ita. Negeri Bayangan: Terrorist Free. Galang Press, 2002.
MLA引文Sembiring, Ita. Negeri Bayangan: Terrorist Free. Galang Press, 2002.
警告：这些引文格式不一定是100％准确.
APA引文