Gutierrez, Carl D. Asset Protection for the 21st Century(PDF). Food Marketing Institute. Food Marketing Institute. [27 August 2019]. (原始内容存档(PDF)于2022-05-19).
Gutierrez, Carl D. Asset Protection for the 21st Century(PDF). Food Marketing Institute. Food Marketing Institute. [27 August 2019]. (原始内容存档(PDF)于2022-05-19).