Songram, Panida, Suchart Khummanee, Khanabhorn Kawattikul, and Nittaya Muangnak. “Hybrid WangchanBERTa Architectures for Multi-Class Thai Sentiment Analysis”. ECTI Transactions on Computer and Information Technology (ECTI-CIT) 20, no. 2 (March 21, 2026): 233–246. accessed April 22, 2026. https://ph01.tci-thaijo.org/index.php/ecticit/article/view/264201.