APA Citation

Li, H.(2019). Optimal Design of Free Samples for Digital Products and Services. Journal of Marketing Research, 56(3), 419-438. doi:10.1177/0022243718823169

MLA Citation

Li, Hongshuang (Alice). "Optimal Design of Free Samples for Digital Products and Services". Journal of Marketing Research, 56.3 ( 2019 ): 419-438.

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