Add BibTex entry

README.md

@@ -106,4 +106,13 @@ The model was trained on 32 V100 GPUs for 31,250 steps with the batch size of 8,
 
 **BibTeX entry and citation info**
 
-[Coming Soon]
+```
+@misc{lowphansirikul2021wangchanberta,
+      title={WangchanBERTa: Pretraining transformer-based Thai Language Models}, 
+      author={Lalita Lowphansirikul and Charin Polpanumas and Nawat Jantrakulchai and Sarana Nutanong},
+      year={2021},
+      eprint={2101.09635},
+      archivePrefix={arXiv},
+      primaryClass={cs.CL}
+}
+```