Kychanov, Yevgeny (2006) Словарь тангутского (Си Ся) языка [Slovarʹ tangutskovo (Si Sja) jazyka, Dictionary of the Tangut (Xi Xia) Language] (in Russian), character 4106-0
Sofronov, Mikhail Viktorovich (1968) Грамматика тангутского языка [Grammatika tangutskovo jazyka, Grammar of the Tangut Language] (in Russian), character 0287
Nishida, Tatsuo (1966) 西夏文小字典 [Little Dictionary of Tangut] (in Japanese), character 2-071
Han Xiaomang (2004) 西夏文正字研究 [A Study on XiXia Orthography] (in Chinese), character 0021; character variant 0022