Gaya APA
Belo, Rodrigo, Li, Ting. ().
Social Referral Programs for Freemium Platforms .
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Gaya Chicago
Belo, Rodrigo, Li, Ting.
Social Referral Programs for Freemium Platforms.
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Text.
Gaya MLA
Belo, Rodrigo, Li, Ting.
Social Referral Programs for Freemium Platforms.
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Text.
Gaya Turabian
Belo, Rodrigo, Li, Ting.
Social Referral Programs for Freemium Platforms.
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Print.