X6| (xi ban ya) Sai, wan ti si | — |
| Bao ding xue yuan. shu xue yu ji suan ji xi | X6 |
| Bao li xi | X6 |
| Baoping Xi | X6 |
| Baotian Xi | X6 |
| Bei Xi | X6 |
| Bei fang jiao tong da xue (China). Tie dao jian zhu xi | X6 |
| Bei fang jiao tong da xue (China). Yun shu xi | X6 |
| Bei fang jiao tong da xue. Tie dao jian zhu xi | X6 |
| Xi bei gong ye da xue (Xi'an, Shaanxi Sheng, China) | X6 |
| Xi bei gong ye da xue (Xi'an, Shaanxi Sheng, China). Ji suan ji jiao yan shi | X6 |
| Xi bei gong ye da xue (Xi'an, Shaanxi Sheng, China). Li lun li xue jiao yan shi | X6 |
| Xi bei gong ye da xue (Xi'an, Shaanxi Sheng, China). Zhi tu jiao yan shi | X6 |
| Beidou Xi | X6 |
| Beijing da xue. Dong fang yu yan wen xue xi | X6 |
| Beijing da xue. E yu xi | X6 |
| Beijing da xue. Fa lü xi | X6 |
| Beijing da xue. Kao gu xi | X6 |
| Beijing da xue. Li shi xi | X6 |
| Beijing da xue li shi xue xi | X6 |
| Beijing da xue. Wu li xue yuan. Da qi yu hai yang ke xue xi | X6 |
| Beijing da xue. Xin xi guan li xi | X6 |
| Beijing da xue zhe xue xi | X6 |
| Beijing da xue. Zhe xue xi | X6 |
| Beijing da xue. Zhong guo yu yan wen xue xi | X6 |
| Beijing da xue. Zhong wen xi | X6 |
| Beijing da xue Zhong wen xi | X6 |
| Beijing da xue. Zhong wen xi. | X6 |
| Beijing da xue Zhongguo yu wen xi | X6 |
| Beijing da xue. Zhongguo yu wen xue xi | X6 |
| Beijing da xue. Zhongguo yu yan wen xue xi | X6 |
| Beijing da xue. Zhongguo yu yan wen xue xi. | X6 |
| Beijing dui wai mao yi xue yuan. 1 xi | X6 |
| Beijing guang bo xue yuan. Xin wen xi | X6 |
| Beijing jing ji xue yuan. An quan gong cheng xi | X6 |
| Beijing shi fan da xue. Hua xue xi | X6 |
| Beijing shi fan da xue. Jiao yu xi. | X6 |
| Beijing shi fan da xue. Jiao yu xi | X6 |
| Beijing shi fan da xue. Li shi xi | X6 |
| Beijing shi fan da xue. Sheng wu xi | X6 |
| Beijing shi fan da xue. Zheng zhi jing ji xue xi | X6 |
| Beijing shi fan da xue. Zhong wen xi | X6 |