Organizations
- X-Knowledge Publisher
- XMLink Publisher
- Xavier University of Louisiana - (New Orleans, Louisiana, United States) External Organization
- Xi'an Gaoya Dianqi Yanjiusuo Publisher
- Xi'an Jiaotong University - (Xi'an, China) External Organization
- Xi'an Shiyou University - (Xi'an, China) External Organization
- Xi'an University of Posts and Telecommunications - (Xi'an, China) External Organization
- Xia & He Publishing Publisher
- Xiamen University - (Amoy, Fujian, China) External Organization
- Xidian University - (Xi'an, China) External Organization