[unable to retrieve full-text content] Herbalife, Amway and Mary Kay: How multi-level marketing 'pyramid schemes' are bankrupting America New York Post
[unable to retrieve full-text content] Owner of S.F.'s Transamerica Pyramid seeks to dismiss tenant's fraud claims, files countersuit San Francisco Chronicle
[unable to retrieve full-text content] DBO Consumer Alert: Private Placement Offerings California Department of Financial Protection and Innovation
[unable to retrieve full-text content] Suspect in $14 billion cryptocurrency pyramid scheme extradited to China The Record from Recorded Future News
[unable to retrieve full-text content] Amway Made China a Billion-Dollar Market. Now It Faces a Crackdown. (Published 2018) The New York Times