Holiday, Ryan.

Growth hacker marketing : = a primer on the future of PR, marketing, and advertising / by: Holiday, Ryan. (Language materials, printed)

駕馭沉靜 = 平衡身心靈與內外衝突, 通往幸福的情緒練習 / by: 霍利得 ((Holiday, Ryan)); Holiday, Ryan.; 聯合線上股份有限公司; 朱怡康 (Electronic resources)