search query: @indexterm PYRAMID SELLING / total: 3
references: 2-3 / 3
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title | year | author | ||
2. |
Business
1987 : AUG, p. 59-63 |
1987 | Diamond, J. |
|
3. |
Operations Research
1984 : MAY-JUN, VOL. 32:3, p. 527-536 |
1984 | Gastwirth, J. L. Bhattacharya, P. K. |
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