Macuja, A. M. (2002). SEC lists 26 firms in pyramid scheme. Manila Bulletin.
芝加哥风格引文Macuja, Ana Marie. "SEC Lists 26 Firms in Pyramid Scheme." Manila Bulletin 2002.
MLA引文Macuja, Ana Marie. "SEC Lists 26 Firms in Pyramid Scheme." Manila Bulletin, 2002.
警告:这些引文格式不一定是100%准确.