^李壬癸(Paul Jen-kuei Li),"臺灣南島語言的語音符號(Orthographic Systems for Formosan Languages)",教育部教育研究委員會(Ministry of Education ROC),臺北市(Taipei),中華民國八十年五月(May 1991),pp.23-25.
參考文獻
Jack Ryalls, Susan J. Behrens,"Introduction to Speech Science--From basic theories to clinical application(言語科學概論--從基礎理論到臨床應用)"[2] (页面存档备份,存于互联网档案馆),World Publishing; 1 edition (April 24, 2003),pp.167. ISBN 978-0205291007