Wilopo, S. A. (2003). Population dynamics modul 5-6. LPKGM FK UGM.
芝加哥风格引文Wilopo, Siswanto Agus. Population Dynamics Modul 5-6. LPKGM FK UGM, 2003.
MLA引文Wilopo, Siswanto Agus. Population Dynamics Modul 5-6. LPKGM FK UGM, 2003.
警告：这些引文格式不一定是100％准确.
APA引文