Игорь Калинин
- Пол: мужской
- ВКонтакте: 301303145
- Книги: Customer Success. How Innovative Companies Are Reducing Churn and Growing Recurring Revenue (Maria Martinez); Healthcare Disrupted. Next Generation Business Models and Strategies (Jeff Elton)
- Аудиокниги: Прятки (Александр Лучанинов); Склеп (Говард Филлипс Лавкрафт)
