☆ 资源说明:☆ [Morgan Kaufmann] Freemium 经济模式 (英文版) [Morgan Kaufmann] Freemium Economics Leveraging Analytics and User Segmentation to Drive Revenue (E-Book) ☆ 图书概要:☆ Freemium Economics presents a practical, instructive approach to successfully implementing the freemium model into your software produ